diff --git a/scripts/Update-Snapshots.ps1 b/scripts/Update-Snapshots.ps1
new file mode 100644
index 0000000..28be847
--- /dev/null
+++ b/scripts/Update-Snapshots.ps1
@@ -0,0 +1,266 @@
+<#
+.SYNOPSIS
+    Replays a snapshot case's request against the real DashScope API and
+    refreshes the three derived files (request.header.txt, response.header.txt,
+    response.body.txt). You only edit <case>.request.body.json by hand.
+
+.DESCRIPTION
+    The test fixtures under test/Cnblogs.DashScope.Tests.Shared/RawHttpData/
+    each consist of four files. The request body is hand-maintained; this script
+    re-sends it to the live DashScope API and regenerates the other three so the
+    fixtures stay consistent with what the SDK actually sends/expects.
+
+    Authorization is taken ONLY from $env:DASHSCOPE_API_KEY (or -ApiKey), never
+    from the stale token inside the existing request.header.txt.
+
+.PARAMETER Case
+    One or more case names (without the .request.body.json suffix) to refresh.
+    Omit and leave -All unset to choose interactively from git-modified bodies.
+
+.PARAMETER All
+    Refresh every case that has a .request.body.json under -DataDir.
+
+.PARAMETER DataDir
+    RawHttpData directory. Defaults to test/Cnblogs.DashScope.Tests.Shared/RawHttpData
+    relative to the repo root (auto-located from this script's path).
+
+.PARAMETER RedactAuth
+    Write "Authorization: Bearer <redacted>" into request.header.txt. Tests never
+    validate the token, so this is safe and avoids leaking keys.
+
+.PARAMETER ApiKey
+    Override $env:DASHSCOPE_API_KEY.
+
+.EXAMPLE
+    pwsh ./scripts/Update-Snapshots.ps1
+    # interactively pick from git-modified *.request.body.json files
+
+.EXAMPLE
+    pwsh ./scripts/Update-Snapshots.ps1 -Case single-generation-message-sse -RedactAuth
+#>
+[CmdletBinding()]
+param(
+    [Parameter(Position = 0, ValueFromRemainingArguments)]
+    [string[]]$Case,
+
+    [switch]$All,
+
+    [string]$DataDir,
+
+    [switch]$RedactAuth,
+
+    [string]$ApiKey
+)
+
+$ErrorActionPreference = 'Stop'
+
+# ---------- locate repo root ----------
+$repoRoot = $PSScriptRoot
+while ($repoRoot -and -not (Test-Path (Join-Path $repoRoot '.git'))) {
+    $parent = Split-Path $repoRoot -Parent
+    if ($parent -eq $repoRoot) { break }
+    $repoRoot = $parent
+}
+if (-not (Test-Path (Join-Path $repoRoot '.git'))) {
+    throw "Could not locate repo root (.git) from '$PSScriptRoot'. Pass -DataDir explicitly."
+}
+
+if (-not $DataDir) {
+    $DataDir = Join-Path $repoRoot 'test/Cnblogs.DashScope.Tests.Shared/RawHttpData'
+}
+if (-not (Test-Path $DataDir)) { throw "DataDir not found: $DataDir" }
+
+# ---------- api key ----------
+if (-not $ApiKey) { $ApiKey = $env:DASHSCOPE_API_KEY }
+if (-not $ApiKey) {
+    throw "No API key. Set `$env:DASHSCOPE_API_KEY or pass -ApiKey."
+}
+
+# ---------- headers we never replay (HttpClient computes/host-specific) ----------
+$skipHeaders = @(
+    'host', 'content-length', 'connection', 'accept-encoding',
+    'postman-token', 'cache-control', 'user-agent', 'request-start-time'
+)
+
+function Get-AbsoluteUrl {
+    param([string]$RequestLine, [hashtable]$Headers)
+
+    # $RequestLine like "POST https://..." or "POST /path HTTP/1.1"
+    $parts = $RequestLine -split ' ', 3
+    if ($parts.Count -lt 2) { throw "Cannot parse request line: '$RequestLine'" }
+    $url = $parts[1]
+    if ($url -match '^https?://') { return $url }
+
+    # relative path -> combine with Host header
+    $hostName = $Headers['host']
+    if (-not $hostName) { throw "Relative URL '$url' but no Host header." }
+    $scheme = 'https'
+    return "${scheme}://${hostName}${url}"
+}
+
+function Parse-RequestHeader {
+    param([string]$Path)
+    $lines = Get-Content -LiteralPath $Path
+    $headers = @{}
+    for ($i = 1; $i -lt $lines.Count; $i++) {
+        $line = $lines[$i]
+        if ([string]::IsNullOrWhiteSpace($line)) { continue }
+        $idx = $line.IndexOf(':')
+        if ($idx -le 0) { continue }
+        $name = $line.Substring(0, $idx).Trim()
+        $value = $line.Substring($idx + 1).Trim()
+        $headers[$name] = $value
+    }
+    return [pscustomobject]@{ RequestLine = $lines[0]; Headers = $headers }
+}
+
+function Select-CasesInteractive {
+    # Use git status to find changed request bodies.
+    $status = git -C $repoRoot status --porcelain (Join-Path $repoRoot '*' 2>$null) 2>$null
+    # The pathspec with repoRoot may be ignored; fall back to plain status.
+    if (-not $status) { $status = git -C $repoRoot status --porcelain }
+    $changed = @(
+        $status | ForEach-Object {
+            # porcelain format: "XY path" (path may be quoted for special chars)
+            $raw = $_
+            # strip leading 2-char status + space
+            $p = $raw.Substring(3).Trim('"')
+            $p
+        } | Where-Object { $_ -match '\.request\.body\.json$' }
+    )
+
+    if (-not $changed) {
+        Write-Host "No modified *.request.body.json found by git. Pass -Case or -All." -ForegroundColor Yellow
+        exit 1
+    }
+
+    # normalize to case names, dedup
+    $names = @(
+        $changed | ForEach-Object {
+            $fn = Split-Path $_ -Leaf
+            $fn -replace '\.request\.body\.json$', ''
+        } | Sort-Object -Unique
+    )
+
+    Write-Host "`nModified request bodies:" -ForegroundColor Cyan
+    for ($i = 0; $i -lt $names.Count; $i++) {
+        Write-Host ("  [{0,2}] {1}" -f $i, $names[$i])
+    }
+    Write-Host ""
+    $answer = Read-Host "Enter indices (comma/space separated), 'all', or 'q' to quit"
+    $answer = $answer.Trim()
+    if (-not $answer -or $answer -eq 'q') { Write-Host "Cancelled."; exit 0 }
+    if ($answer -eq 'all') { return ,$names }
+
+    $picked = @()
+    foreach ($tok in ($answer -split '[ ,]+') | Where-Object { $_ -ne '' }) {
+        if ($tok -match '^\d+$') {
+            $n = [int]$tok
+            if ($n -ge 0 -and $n -lt $names.Count) { $picked += $names[$n] }
+            else { Write-Host "  ignoring out-of-range index $tok" -ForegroundColor Yellow }
+        }
+    }
+    if (-not $picked) { Write-Host "Nothing selected."; exit 0 }
+    return ,$picked
+}
+
+function Resolve-Cases {
+    if ($All) {
+        $all = @(Get-ChildItem -LiteralPath $DataDir -Filter '*.request.body.json' |
+                ForEach-Object { $_.BaseName -replace '\.request\.body$', '' } |
+                Sort-Object -Unique)
+        if (-not $all) { Write-Host "No *.request.body.json in $DataDir" -ForegroundColor Yellow; exit 0 }
+        return ,$all
+    }
+    if ($Case -and $Case.Count) { return ,$Case }
+    return ,(Select-CasesInteractive)
+}
+
+function Invoke-RefreshCase {
+    param([string]$Name)
+
+    $bodyPath = Join-Path $DataDir "$Name.request.body.json"
+    $reqHeaderPath = Join-Path $DataDir "$Name.request.header.txt"
+    $respHeaderPath = Join-Path $DataDir "$Name.response.header.txt"
+    $respBodyPath = Join-Path $DataDir "$Name.response.body.txt"
+
+    if (-not (Test-Path $bodyPath)) {
+        Write-Host "  [skip] $Name : no .request.body.json (GET/multipart not supported)" -ForegroundColor Yellow
+        return
+    }
+    if (-not (Test-Path $reqHeaderPath)) {
+        Write-Host "  [skip] $Name : no .request.header.txt" -ForegroundColor Yellow
+        return
+    }
+
+    $parsed = Parse-RequestHeader -Path $reqHeaderPath
+    $method = ($parsed.RequestLine -split ' ', 2)[0]
+    $url = Get-AbsoluteUrl -RequestLine $parsed.RequestLine -Headers $parsed.Headers
+
+    $body = Get-Content -LiteralPath $bodyPath -Raw
+
+    # build outgoing request
+    $req = [System.Net.Http.HttpRequestMessage]::new([System.Net.Http.HttpMethod]::new($method), $url)
+
+    $contentType = 'application/json'
+    $forwardHeaders = [ordered]@{}
+    foreach ($k in $parsed.Headers.Keys) {
+        if ($skipHeaders -contains $k.ToLower()) { continue }
+        if ($k -ieq 'content-type') { $contentType = $parsed.Headers[$k]; continue }
+        $forwardHeaders[$k] = $parsed.Headers[$k]
+    }
+
+    $content = [System.Net.Http.StringContent]::new($body, [System.Text.Encoding]::UTF8, $contentType)
+    $req.Content = $content
+
+    # Authorization always from env/key
+    $authValue = if ($RedactAuth) { 'Bearer <redacted>' } else { "Bearer $ApiKey" }
+    $req.Headers.TryAddWithoutValidation('Authorization', $authValue) | Out-Null
+    foreach ($k in $forwardHeaders.Keys) {
+        $req.Headers.TryAddWithoutValidation($k, $forwardHeaders[$k]) | Out-Null
+    }
+
+    $resp = $httpClient.SendAsync($req, [System.Net.Http.HttpCompletionOption]::ResponseHeadersRead).GetAwaiter().GetResult()
+    $respBody = $resp.Content.ReadAsStringAsync().GetAwaiter().GetResult()
+
+    # --- write request.header.txt (normalized) ---
+    $reqLines = [System.Collections.Generic.List[string]]::new()
+    $reqLines.Add("$method $url")
+    $reqLines.Add("Authorization: $authValue")
+    if ($contentType) { $reqLines.Add("Content-Type: $contentType") }
+    foreach ($k in $forwardHeaders.Keys) { $reqLines.Add("${k}: " + $forwardHeaders[$k]) }
+    [System.IO.File]::WriteAllLines($reqHeaderPath, $reqLines, (New-Object System.Text.UTF8Encoding $false))
+
+    # --- write response.header.txt ---
+    $respLines = [System.Collections.Generic.List[string]]::new()
+    $respLines.Add("HTTP/1.1 $([int]$resp.StatusCode) $($resp.ReasonPhrase)")
+    foreach ($h in $resp.Headers) { foreach ($v in $h.Value) { $respLines.Add("$($h.Key): $v") } }
+    foreach ($h in $resp.Content.Headers) { foreach ($v in $h.Value) { $respLines.Add("$($h.Key): $v") } }
+    [System.IO.File]::WriteAllLines($respHeaderPath, $respLines, (New-Object System.Text.UTF8Encoding $false))
+
+    # --- write response.body.txt ---
+    [System.IO.File]::WriteAllText($respBodyPath, $respBody, (New-Object System.Text.UTF8Encoding $false))
+
+    $mark = if ($resp.IsSuccessStatusCode) { '✓' } else { '✗' }
+    $color = if ($resp.IsSuccessStatusCode) { 'Green' } else { 'Red' }
+    Write-Host ("  {0} {1} -> {2} {3}" -f $mark, $Name, [int]$resp.StatusCode, $resp.ReasonPhrase) -ForegroundColor $color
+}
+
+# ---------- HttpClient with gzip/deflate auto-decompression ----------
+Add-Type -AssemblyName System.Net.Http -ErrorAction SilentlyContinue
+$handler = [System.Net.Http.HttpClientHandler]::new()
+$handler.AutomaticDecompression = [System.Net.DecompressionMethods]::GZip -bor `
+    [System.Net.DecompressionMethods]::Deflate -bor [System.Net.DecompressionMethods]::Brotli
+$httpClient = [System.Net.Http.HttpClient]::new($handler)
+$httpClient.Timeout = [TimeSpan]::FromMinutes(5)
+
+try {
+    $cases = Resolve-Cases
+    Write-Host "Refreshing $($cases.Count) case(s) against live DashScope API..." -ForegroundColor Cyan
+    foreach ($c in $cases) { Invoke-RefreshCase -Name $c }
+    Write-Host "Done." -ForegroundColor Green
+}
+finally {
+    $httpClient.Dispose()
+    $handler.Dispose()
+}
diff --git a/src/Cnblogs.DashScope.AI/DashScopeChatClient.cs b/src/Cnblogs.DashScope.AI/DashScopeChatClient.cs
index 90168f9..ff5b724 100644
--- a/src/Cnblogs.DashScope.AI/DashScopeChatClient.cs
+++ b/src/Cnblogs.DashScope.AI/DashScopeChatClient.cs
@@ -442,35 +442,8 @@ private MultimodalParameters ToMultimodalParameters(ChatOptions? options)
             return raw;
         }
 
-        var parameters = new MultimodalParameters
-        {
-            ResponseFormat = ToDashScopeResponseFormat(options.ResponseFormat),
-            Temperature = options.Temperature,
-            MaxTokens = options.MaxOutputTokens,
-            TopP = options.TopP,
-            TopK = options.TopK,
-            RepetitionPenalty = options.FrequencyPenalty,
-            PresencePenalty = options.PresencePenalty,
-            Seed = (ulong?)options.Seed,
-            Stop = options.StopSequences == null ? null : new TextGenerationStop(options.StopSequences),
-            Tools = options.Tools == null ? null : ToToolDefinitions(options.Tools),
-            ToolChoice = options.ToolMode switch
-            {
-                AutoChatToolMode => ToolChoice.AutoChoice,
-                RequiredChatToolMode required when string.IsNullOrEmpty(required.RequiredFunctionName) == false =>
-                    ToolChoice.FunctionChoice(required.RequiredFunctionName),
-                null => null,
-                _ => ToolChoice.AutoChoice
-            },
-            ParallelToolCalls = options.AllowMultipleToolCalls,
-            EnableThinking = options.Reasoning?.Effort switch
-            {
-                null => null,
-                ReasoningEffort.None => false,
-                _ => true
-            }
-        };
-
+        var parameters = new MultimodalParameters();
+        MapChatOptions(parameters, options);
         return parameters;
     }
 
@@ -635,35 +608,98 @@ private static TextGenerationParameters ToTextGenerationParameters(ChatOptions?
             return parameters;
         }
 
-        return new TextGenerationParameters
-        {
-            ResultFormat = "message",
-            ResponseFormat = ToDashScopeResponseFormat(options.ResponseFormat),
-            Temperature = options.Temperature,
-            MaxTokens = options.MaxOutputTokens,
-            TopP = options.TopP,
-            TopK = options.TopK,
-            RepetitionPenalty = options.FrequencyPenalty,
-            PresencePenalty = options.PresencePenalty,
-            Seed = options.Seed == null ? null : (ulong)options.Seed.Value,
-            Stop = options.StopSequences == null ? null : new TextGenerationStop(options.StopSequences),
-            Tools = options.Tools == null ? null : ToToolDefinitions(options.Tools),
-            ToolChoice = options.ToolMode switch
-            {
-                AutoChatToolMode => ToolChoice.AutoChoice,
-                RequiredChatToolMode required when string.IsNullOrEmpty(required.RequiredFunctionName) == false =>
-                    ToolChoice.FunctionChoice(required.RequiredFunctionName),
-                null => null,
-                _ => ToolChoice.AutoChoice
-            },
-            ParallelToolCalls = options.AllowMultipleToolCalls,
-            EnableThinking = options.Reasoning?.Effort switch
-            {
-                null => null,
-                ReasoningEffort.None => false,
-                _ => true
-            }
+        parameters = new TextGenerationParameters { ResultFormat = "message" };
+        MapChatOptions(parameters, options);
+        return parameters;
+    }
+
+    /// <summary>
+    /// Maps shared <see cref="ChatOptions"/> onto the parameter interfaces implemented by both
+    /// <see cref="TextGenerationParameters"/> and <see cref="MultimodalParameters"/>.
+    /// </summary>
+    private static void MapChatOptions<TParameters>(TParameters parameters, ChatOptions options)
+        where TParameters : IProbabilityParameter,
+            IPenaltyParameter,
+            IMaxTokenParameter,
+            IStopTokenParameter,
+            ISeedParameter,
+            IStructuredOutputParameter,
+            IThinkingParameter,
+            IFunctionCallParameter
+    {
+        MapFromChatOptions((IProbabilityParameter)parameters, options);
+        MapFromChatOptions((IPenaltyParameter)parameters, options);
+        MapFromChatOptions((IMaxTokenParameter)parameters, options);
+        MapFromChatOptions((IStopTokenParameter)parameters, options);
+        MapFromChatOptions((ISeedParameter)parameters, options);
+        MapFromChatOptions((IStructuredOutputParameter)parameters, options);
+        MapFromChatOptions((IThinkingParameter)parameters, options);
+        MapFromChatOptions((IFunctionCallParameter)parameters, options);
+    }
+
+    private static void MapFromChatOptions(IProbabilityParameter parameters, ChatOptions options)
+    {
+        parameters.Temperature = options.Temperature;
+        parameters.TopP = options.TopP;
+        parameters.TopK = options.TopK;
+    }
+
+    private static void MapFromChatOptions(IPenaltyParameter parameters, ChatOptions options)
+    {
+        parameters.RepetitionPenalty = options.FrequencyPenalty;
+        parameters.PresencePenalty = options.PresencePenalty;
+    }
+
+    private static void MapFromChatOptions(IMaxTokenParameter parameters, ChatOptions options)
+    {
+        parameters.MaxCompletionTokens = options.MaxOutputTokens;
+    }
+
+    private static void MapFromChatOptions(IStopTokenParameter parameters, ChatOptions options)
+    {
+        parameters.Stop = options.StopSequences == null ? null : new TextGenerationStop(options.StopSequences);
+    }
+
+    private static void MapFromChatOptions(ISeedParameter parameters, ChatOptions options)
+    {
+        parameters.Seed = (ulong?)options.Seed;
+    }
+
+    private static void MapFromChatOptions(IStructuredOutputParameter parameters, ChatOptions options)
+    {
+        parameters.ResponseFormat = ToDashScopeResponseFormat(options.ResponseFormat);
+    }
+
+    private static void MapFromChatOptions(IThinkingParameter parameters, ChatOptions options)
+    {
+        parameters.EnableThinking = options.Reasoning?.Effort switch
+        {
+            null => null,
+            ReasoningEffort.None => false,
+            _ => true
+        };
+        parameters.ReasoningEffort = options.Reasoning?.Effort switch
+        {
+            ReasoningEffort.Low => "low",
+            ReasoningEffort.Medium => "medium",
+            ReasoningEffort.High => "high",
+            ReasoningEffort.ExtraHigh => "xhigh",
+            _ => null
+        };
+    }
+
+    private static void MapFromChatOptions(IFunctionCallParameter parameters, ChatOptions options)
+    {
+        parameters.Tools = options.Tools == null ? null : ToToolDefinitions(options.Tools);
+        parameters.ToolChoice = options.ToolMode switch
+        {
+            AutoChatToolMode => ToolChoice.AutoChoice,
+            RequiredChatToolMode required when string.IsNullOrEmpty(required.RequiredFunctionName) == false =>
+                ToolChoice.FunctionChoice(required.RequiredFunctionName),
+            null => null,
+            _ => ToolChoice.AutoChoice
         };
+        parameters.ParallelToolCalls = options.AllowMultipleToolCalls;
     }
 
     private static DashScopeResponseFormat? ToDashScopeResponseFormat(ChatResponseFormat? format)
diff --git a/src/Cnblogs.DashScope.Core/ICodeInterpreterParameter.cs b/src/Cnblogs.DashScope.Core/ICodeInterpreterParameter.cs
index c83501e..35f418a 100644
--- a/src/Cnblogs.DashScope.Core/ICodeInterpreterParameter.cs
+++ b/src/Cnblogs.DashScope.Core/ICodeInterpreterParameter.cs
@@ -8,5 +8,5 @@ public interface ICodeInterpreterParameter
     /// <summary>
     /// Allow model to call internal Python interpreter. Can not use with tools.
     /// </summary>
-    bool? EnableCodeInterpreter { get; }
+    bool? EnableCodeInterpreter { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IFunctionCallParameter.cs b/src/Cnblogs.DashScope.Core/IFunctionCallParameter.cs
index 04b98dc..585d10c 100644
--- a/src/Cnblogs.DashScope.Core/IFunctionCallParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IFunctionCallParameter.cs
@@ -8,15 +8,15 @@ public interface IFunctionCallParameter
     /// <summary>
     /// Available tools for model to call.
     /// </summary>
-    IEnumerable<ToolDefinition>? Tools { get; }
+    IEnumerable<ToolDefinition>? Tools { get; set; }
 
     /// <summary>
     /// Behavior when choosing tools.
     /// </summary>
-    ToolChoice? ToolChoice { get; }
+    ToolChoice? ToolChoice { get; set; }
 
     /// <summary>
     /// Whether to enable parallel tool calling
     /// </summary>
-    bool? ParallelToolCalls { get; }
+    bool? ParallelToolCalls { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IImageSynthesisParameters.cs b/src/Cnblogs.DashScope.Core/IImageSynthesisParameters.cs
index 1b3585a..e45aa96 100644
--- a/src/Cnblogs.DashScope.Core/IImageSynthesisParameters.cs
+++ b/src/Cnblogs.DashScope.Core/IImageSynthesisParameters.cs
@@ -8,25 +8,25 @@ public interface IImageSynthesisParameters : ISeedParameter
     /// <summary>
     /// Generated image style, defaults to '&lt;auto&gt;'. Use <see cref="ImageStyles"/> to get all available options.
     /// </summary>
-    string? Style { get; }
+    string? Style { get; set; }
 
     /// <summary>
     /// Generated image size, defaults to 1024*1024. Another options are: 1280*720 and 720*1280.
     /// </summary>
-    string? Size { get; }
+    string? Size { get; set; }
 
     /// <summary>
     /// Number of images requested. Max number is 4, defaults to 1.
     /// </summary>
-    int? N { get; }
+    int? N { get; set; }
 
     /// <summary>
     /// Let LLM rewrite your positive prompt, Defaults to true.
     /// </summary>
-    bool? PromptExtend { get; }
+    bool? PromptExtend { get; set; }
 
     /// <summary>
     /// Adds AI-Generated watermark on bottom right corner.
     /// </summary>
-    bool? Watermark { get; }
+    bool? Watermark { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IIncrementalOutputParameter.cs b/src/Cnblogs.DashScope.Core/IIncrementalOutputParameter.cs
index 66ba5a0..0f28298 100644
--- a/src/Cnblogs.DashScope.Core/IIncrementalOutputParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IIncrementalOutputParameter.cs
@@ -8,5 +8,5 @@ public interface IIncrementalOutputParameter
     /// <summary>
     /// Enable stream output. Defaults to false.
     /// </summary>
-    public bool? IncrementalOutput { get; }
+    bool? IncrementalOutput { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IMaxTokenParameter.cs b/src/Cnblogs.DashScope.Core/IMaxTokenParameter.cs
index eb89dae..c0e04ed 100644
--- a/src/Cnblogs.DashScope.Core/IMaxTokenParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IMaxTokenParameter.cs
@@ -8,8 +8,11 @@ public interface IMaxTokenParameter
     /// <summary>
     /// The maximum number of tokens the model can generate.
     /// </summary>
-    /// <remarks>
-    /// Default and maximum number of tokens is 1500(qwen-turbo) or 2000(qwen-max, qwen-max-1201, qwen-max-longcontext, qwen-plus).
-    /// </remarks>
-    public int? MaxTokens { get; }
+    [Obsolete("Use MaxCompletionTokens instead")]
+    int? MaxTokens { get; set; }
+
+    /// <summary>
+    /// The maximum number of tokens the model can generate, include reasoning output.
+    /// </summary>
+    int? MaxCompletionTokens { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IMultimodalParameters.cs b/src/Cnblogs.DashScope.Core/IMultimodalParameters.cs
index 0b1982e..6cc069c 100644
--- a/src/Cnblogs.DashScope.Core/IMultimodalParameters.cs
+++ b/src/Cnblogs.DashScope.Core/IMultimodalParameters.cs
@@ -5,7 +5,6 @@
 /// </summary>
 public interface IMultimodalParameters
     : IProbabilityParameter,
-        ISeedParameter,
         IIncrementalOutputParameter,
         IPenaltyParameter,
         IMaxTokenParameter,
@@ -15,25 +14,26 @@ public interface IMultimodalParameters
         IStructuredOutputParameter,
         IWebSearchParameter,
         ICodeInterpreterParameter,
-        IImageSynthesisParameters
+        IImageSynthesisParameters,
+        IToolParameter
 {
     /// <summary>
     /// Allow higher resolution for inputs. When setting to <c>true</c>, increases the maximum input token from 1280 to 16384. Defaults to <c>false</c>.
     /// </summary>
-    bool? VlHighResolutionImages { get; }
+    bool? VlHighResolutionImages { get; set; }
 
     /// <summary>
     /// Options for speech recognition.
     /// </summary>
-    AsrOptions? AsrOptions { get; }
+    AsrOptions? AsrOptions { get; set; }
 
     /// <summary>
     /// Extra configurations for OCR models.
     /// </summary>
-    MultimodalOcrOptions? OcrOptions { get; }
+    MultimodalOcrOptions? OcrOptions { get; set; }
 
     /// <summary>
     /// Negative prompt when doing image generation task.
     /// </summary>
-    string? NegativePrompt { get; }
+    string? NegativePrompt { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IPenaltyParameter.cs b/src/Cnblogs.DashScope.Core/IPenaltyParameter.cs
index d00a6e3..4efa9bf 100644
--- a/src/Cnblogs.DashScope.Core/IPenaltyParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IPenaltyParameter.cs
@@ -8,11 +8,11 @@ public interface IPenaltyParameter
     /// <summary>
     /// Increasing the repetition penalty can reduce the amount of repetition in the model’s output. A value of 1.0 indicates no penalty, with the default set at 1.1.
     /// </summary>
-    public float? RepetitionPenalty { get; }
+    public float? RepetitionPenalty { get; set; }
 
     /// <summary>
     /// Control the content repetition in text generated by the model.
     /// </summary>
     /// <remarks>Must be in [-2.0, 2.0]. Use higher penalty for batter creativity.</remarks>
-    public float? PresencePenalty { get; }
+    public float? PresencePenalty { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IProbabilityParameter.cs b/src/Cnblogs.DashScope.Core/IProbabilityParameter.cs
index 0efa681..77237b9 100644
--- a/src/Cnblogs.DashScope.Core/IProbabilityParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IProbabilityParameter.cs
@@ -8,18 +8,18 @@ public interface IProbabilityParameter
     /// <summary>
     /// The probability threshold during generation, defaults to 0.8 when null.
     /// </summary>
-    public float? TopP { get; }
+    public float? TopP { get; set; }
 
     /// <summary>
     /// The size of the candidate set for sampling during generation.
     /// A larger value increases the randomness of the generated results.
     /// </summary>
     /// <remarks>top_k would been disabled if applied null or any value larger than 100.</remarks>
-    public int? TopK { get; }
+    public int? TopK { get; set; }
 
     /// <summary>
     /// Controls the diversity of generations. Lower temperature leads to more consistent result.
     /// </summary>
     /// <remarks>Must be in [0,2), qwen-max defaults to 0.7.</remarks>
-    public float? Temperature { get; }
+    public float? Temperature { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/ISeedParameter.cs b/src/Cnblogs.DashScope.Core/ISeedParameter.cs
index f1f377b..23134da 100644
--- a/src/Cnblogs.DashScope.Core/ISeedParameter.cs
+++ b/src/Cnblogs.DashScope.Core/ISeedParameter.cs
@@ -8,5 +8,5 @@ public interface ISeedParameter
     /// <summary>
     /// The seed for randomizer, defaults to 1234 when null.
     /// </summary>
-    public ulong? Seed { get; }
+    public ulong? Seed { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IStopTokenParameter.cs b/src/Cnblogs.DashScope.Core/IStopTokenParameter.cs
index 793f6a0..1dbf7e8 100644
--- a/src/Cnblogs.DashScope.Core/IStopTokenParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IStopTokenParameter.cs
@@ -8,5 +8,5 @@ public interface IStopTokenParameter
     /// <summary>
     /// Stop generation when next token or string is in given range.
     /// </summary>
-    public TextGenerationStop? Stop { get; }
+    public TextGenerationStop? Stop { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IStructuredOutputParameter.cs b/src/Cnblogs.DashScope.Core/IStructuredOutputParameter.cs
index ebb8144..450797a 100644
--- a/src/Cnblogs.DashScope.Core/IStructuredOutputParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IStructuredOutputParameter.cs
@@ -17,5 +17,5 @@ public interface IStructuredOutputParameter
     ///     parameter.ResponseFormat = DashScopeResponseFormat.Json;
     /// </code>
     /// </example>
-    DashScopeResponseFormat? ResponseFormat { get; }
+    DashScopeResponseFormat? ResponseFormat { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/ITextGenerationParameters.cs b/src/Cnblogs.DashScope.Core/ITextGenerationParameters.cs
index f560590..fec42e9 100644
--- a/src/Cnblogs.DashScope.Core/ITextGenerationParameters.cs
+++ b/src/Cnblogs.DashScope.Core/ITextGenerationParameters.cs
@@ -14,7 +14,8 @@ public interface ITextGenerationParameters
         IFunctionCallParameter,
         IStructuredOutputParameter,
         IWebSearchParameter,
-        ICodeInterpreterParameter
+        ICodeInterpreterParameter,
+        IToolParameter
 {
     /// <summary>
     /// The format of the result, must be <c>text</c> or <c>message</c>.
@@ -29,7 +30,7 @@ public interface ITextGenerationParameters
     ///     parameter.ResultFormat = ResultFormats.Message;
     /// </code>
     /// </example>
-    string? ResultFormat { get; }
+    string? ResultFormat { get; set; }
 
     /// <summary>
     /// Include log possibilities in response.
diff --git a/src/Cnblogs.DashScope.Core/IThinkingParameter.cs b/src/Cnblogs.DashScope.Core/IThinkingParameter.cs
index 694379f..99dbde7 100644
--- a/src/Cnblogs.DashScope.Core/IThinkingParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IThinkingParameter.cs
@@ -8,7 +8,7 @@ public interface IThinkingParameter
     /// <summary>
     /// Thinking option. Valid for supported models.(e.g. qwen3)
     /// </summary>
-    bool? EnableThinking { get; }
+    bool? EnableThinking { get; set; }
 
     /// <summary>
     /// Maximum length of thinking content. Valid for supported models.(e.g. qwen3)
@@ -19,4 +19,9 @@ public interface IThinkingParameter
     /// Make past reasoning content in the chat history visible to the LLM.
     /// </summary>
     bool? PreserveThinking { get; set; }
+
+    /// <summary>
+    /// Controls the reasoning effort for deepseek-v4 series models, "low", "medium", "high" equals to "high", "xhigh" equals to "max".
+    /// </summary>
+    string? ReasoningEffort { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/IToolParameter.cs b/src/Cnblogs.DashScope.Core/IToolParameter.cs
new file mode 100644
index 0000000..9291f18
--- /dev/null
+++ b/src/Cnblogs.DashScope.Core/IToolParameter.cs
@@ -0,0 +1,12 @@
+namespace Cnblogs.DashScope.Core;
+
+/// <summary>
+/// Parameters for tool calls behavior.
+/// </summary>
+public interface IToolParameter
+{
+    /// <summary>
+    /// Streaming tool calls that with object or array type parameters.
+    /// </summary>
+    bool? ToolStream { get; set; }
+}
diff --git a/src/Cnblogs.DashScope.Core/IWebSearchParameter.cs b/src/Cnblogs.DashScope.Core/IWebSearchParameter.cs
index 5aa8959..928a761 100644
--- a/src/Cnblogs.DashScope.Core/IWebSearchParameter.cs
+++ b/src/Cnblogs.DashScope.Core/IWebSearchParameter.cs
@@ -8,15 +8,15 @@ public interface IWebSearchParameter
     /// <summary>
     /// Enable internet search when generation. Defaults to false.
     /// </summary>
-    bool? EnableSearch { get; }
+    bool? EnableSearch { get; set; }
 
     /// <summary>
     /// Include &lt;img&gt; tags in the response.
     /// </summary>
-    bool? EnableTextImageMixed { get; }
+    bool? EnableTextImageMixed { get; set; }
 
     /// <summary>
     /// Search options. <see cref="EnableSearch"/> should set to true.
     /// </summary>
-    SearchOptions? SearchOptions { get; }
+    SearchOptions? SearchOptions { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/MultimodalParameters.cs b/src/Cnblogs.DashScope.Core/MultimodalParameters.cs
index 4863097..b8a6c4d 100644
--- a/src/Cnblogs.DashScope.Core/MultimodalParameters.cs
+++ b/src/Cnblogs.DashScope.Core/MultimodalParameters.cs
@@ -50,6 +50,9 @@ public class MultimodalParameters : IMultimodalParameters
     /// <inheritdoc />
     public int? MaxTokens { get; set; }
 
+    /// <inheritdoc />
+    public int? MaxCompletionTokens { get; set; }
+
     /// <inheritdoc />
     public TextGenerationStop? Stop { get; set; }
 
@@ -62,6 +65,9 @@ public class MultimodalParameters : IMultimodalParameters
     /// <inheritdoc />
     public bool? PreserveThinking { get; set; }
 
+    /// <inheritdoc />
+    public string? ReasoningEffort { get; set; }
+
     /// <inheritdoc />
     public MultimodalOcrOptions? OcrOptions { get; set; }
 
@@ -91,4 +97,7 @@ public class MultimodalParameters : IMultimodalParameters
 
     /// <inheritdoc />
     public bool? EnableCodeInterpreter { get; set; }
+
+    /// <inheritdoc />
+    public bool? ToolStream { get; set; }
 }
diff --git a/src/Cnblogs.DashScope.Core/TextGenerationParameters.cs b/src/Cnblogs.DashScope.Core/TextGenerationParameters.cs
index 34eaaa5..bd1724c 100644
--- a/src/Cnblogs.DashScope.Core/TextGenerationParameters.cs
+++ b/src/Cnblogs.DashScope.Core/TextGenerationParameters.cs
@@ -17,6 +17,9 @@ public class TextGenerationParameters : ITextGenerationParameters
     /// <inheritdoc />
     public int? MaxTokens { get; set; }
 
+    /// <inheritdoc />
+    public int? MaxCompletionTokens { get; set; }
+
     /// <inheritdoc />
     public float? TopP { get; set; }
 
@@ -53,6 +56,9 @@ public class TextGenerationParameters : ITextGenerationParameters
     /// <inheritdoc />
     public bool? PreserveThinking { get; set; }
 
+    /// <inheritdoc />
+    public string? ReasoningEffort { get; set; }
+
     /// <inheritdoc />
     public bool? Logprobs { get; set; }
 
@@ -85,4 +91,7 @@ public class TextGenerationParameters : ITextGenerationParameters
 
     /// <inheritdoc />
     public bool? IncrementalOutput { get; set; }
+
+    /// <inheritdoc />
+    public bool? ToolStream { get; set; }
 }
diff --git a/test/Cnblogs.DashScope.AI.UnitTests/ChatClientTests.cs b/test/Cnblogs.DashScope.AI.UnitTests/ChatClientTests.cs
index e393f54..04fd4b2 100644
--- a/test/Cnblogs.DashScope.AI.UnitTests/ChatClientTests.cs
+++ b/test/Cnblogs.DashScope.AI.UnitTests/ChatClientTests.cs
@@ -70,7 +70,7 @@ public async Task ChatClient_TextCompletion_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = testCase.RequestModel.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -111,7 +111,7 @@ public async Task ChatClient_TextCompletionStream_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = testCase.RequestModel.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -165,7 +165,7 @@ public async Task ChatClient_ImageRecognition_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = testCase.RequestModel.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -211,7 +211,7 @@ public async Task ChatClient_ImageRecognitionStream_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = testCase.RequestModel.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -261,7 +261,7 @@ public async Task ChatClient_TextCompletionStreamWithToolCalls_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = testCase.Request.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -322,7 +322,7 @@ public async Task ChatClient_TextCompletionStreamWithToolMessages_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = firstRound.Request.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -396,7 +396,7 @@ public async Task ChatClient_MultimodalStreamWithToolCalls_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = testCase.Request.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
@@ -465,7 +465,7 @@ public async Task ChatClient_MultimodalStreamWithToolMessages_SuccessAsync()
                 FrequencyPenalty = parameter?.RepetitionPenalty,
                 PresencePenalty = parameter?.PresencePenalty,
                 ModelId = firstRound.Request.Model,
-                MaxOutputTokens = parameter?.MaxTokens,
+                MaxOutputTokens = parameter?.MaxCompletionTokens,
                 Seed = (long?)parameter?.Seed,
                 Temperature = parameter?.Temperature,
                 TopK = parameter?.TopK,
diff --git a/test/Cnblogs.DashScope.Sdk.UnitTests/TextGenerationSerializationTests.cs b/test/Cnblogs.DashScope.Sdk.UnitTests/TextGenerationSerializationTests.cs
index d6ab73e..a414fd9 100644
--- a/test/Cnblogs.DashScope.Sdk.UnitTests/TextGenerationSerializationTests.cs
+++ b/test/Cnblogs.DashScope.Sdk.UnitTests/TextGenerationSerializationTests.cs
@@ -241,6 +241,7 @@ public async Task ConversationCompletion_DeepResearchSse_SuccessAsync(
         ModelResponse<TextGenerationOutput, TextGenerationTokenUsage>>> SingleGenerationMessageFormatData = new(
         Snapshots.TextGeneration.MessageFormat.SingleMessage,
         Snapshots.TextGeneration.MessageFormat.SingleMessageReasoning,
+        Snapshots.TextGeneration.MessageFormat.SingleMessageReasoningEffort,
         Snapshots.TextGeneration.MessageFormat.SingleMessageWithTools,
         Snapshots.TextGeneration.MessageFormat.SingleMessageJson,
         Snapshots.TextGeneration.MessageFormat.SingleMessageLogprobs,
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/multimodal-generation-vl-nosse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/multimodal-generation-vl-nosse.request.body.json
index 0b0bb59..37bdb5f 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/multimodal-generation-vl-nosse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/multimodal-generation-vl-nosse.request.body.json
@@ -25,7 +25,6 @@
     "temperature": 1.1,
     "repetition_penalty": 1.3,
     "presence_penalty": 1.2,
-    "max_tokens": 120,
     "stop": "你好"
   }
 }
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-nosse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-nosse.request.body.json
index 7651470..85a905a 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-nosse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-nosse.request.body.json
@@ -11,7 +11,7 @@
   "parameters": {
     "result_format": "message",
     "seed": 1234,
-    "max_tokens": 1500,
+    "max_completion_tokens": 1500,
     "top_p": 0.8,
     "top_k": 100,
     "repetition_penalty": 1.1,
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.request.body.json
new file mode 100644
index 0000000..9e44242
--- /dev/null
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.request.body.json
@@ -0,0 +1,16 @@
+{
+  "model": "deepseek-v4-pro",
+  "input": {
+    "messages": [
+      {
+        "role": "user",
+        "content": "填入数列“1，7，8，57，（ ），3370”空缺处的数字"
+      }
+    ]
+  },
+  "parameters": {
+    "incremental_output": false,
+    "enable_thinking": true,
+    "reasoning_effort": "xhigh"
+  }
+}
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.request.header.txt b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.request.header.txt
new file mode 100644
index 0000000..aa5748a
--- /dev/null
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.request.header.txt
@@ -0,0 +1,5 @@
+POST https://dashscope.aliyuncs.com/api/v1/services/aigc/text-generation/generation
+Accept: application/json, text/plain, */*
+Content-Type: application/json
+User-Agent: bruno-runtime/3.4.2
+request-start-time: 1781358949976
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.response.body.txt b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.response.body.txt
new file mode 100644
index 0000000..d63440e
--- /dev/null
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.response.body.txt
@@ -0,0 +1 @@
+{"output":{"choices":[{"finish_reason":"stop","message":{"content":"根据数列的规律，从第三项开始，每一项等于前第二项的平方加上前一项。具体验证如下：\n\n- 第三项：\\(1^2 + 7 = 8\\)\n- 第四项：\\(7^2 + 8 = 49 + 8 = 57\\)\n- 第五项：\\(8^2 + 57 = 64 + 57 = 121\\)\n- 第六项：\\(57^2 + 121 = 3249 + 121 = 3370\\)（与给定数列一致）\n\n因此，空缺处的数字应为 **121**。","reasoning_content":"我们被问到：\"填入数列“1，7，8，57，（ ），3370”空缺处的数字\"。这是一个数列推理问题。我们需要找出模式。\n\n数列：1, 7, 8, 57, ?, 3370。\n\n让我们检查可能的模式。通常，数列可能涉及乘法、加法、平方或其他运算。\n\n观察数字：1, 7, 8, 57, ?, 3370。\n\n让我们看看相邻项之间的关系：\n\n从1到7：7 = 1 * ? 或者1 + 6？或者1^2 + 6？或者1 * 7？\n\n从7到8：8 = 7 + 1？或者7 * 1 + 1？\n\n从8到57：57 = 8 * 7 + 1？8*7=56，56+1=57。注意7是前一项？或者8 * 7 + 1，其中7是前两项？实际上，1,7,8: 8 = 1*7 + 1? 1*7+1=8。然后57 = 7*8 + 1? 7*8=56, 56+1=57。那么下一项可能是8*57 + 1? 8*57=456, 456+1=457。但最后一项是3370。457不等于3370。或者可能是8*57 + ? 8*57=456, 3370-456=2914，不是明显模式。\n\n另一种模式：也许涉及平方：7 = 2^3 - 1? 1^2+6? 不明显。\n\n检查：1, 7, 8, 57。1^2+7? 1+49=50? 不。\n\n也许模式是：a(n) = a(n-2) * a(n-1) + something。我们已经试过加1：1*7+1=8，7*8+1=57，那么8*57+1=457，但下一项是3370，不是457。如果我们继续：57*457+? 太大。\n\n也许模式不是加1，而是加一个递增的数？1*7+1=8，7*8+1=57，8*57+?=下一个。如果下一个是X，那么57*X+?=3370。或者模式可能是：a(n) = a(n-1)^2 + a(n-2)？7^2+1=50? 不。8^2+7=71? 不。57^2+8=3249+8=3257，不是3370。57^2+?=3370 -> 3370-3249=121，121=11^2。不显然。\n\n另一种思路：也许这些数字与某种函数有关，比如阶乘或指数。\n\n1, 7, 8, 57, ?, 3370。\n\n检查差值：6, 1, 49, ?, ?。1=1^2, 49=7^2? 6不是平方。\n\n也许模式是：a(n) = a(n-1) * a(n-2) + a(n-3)? 对于第四项：57 = 8*7 + 1? 8*7+1=57，是a(n-1)*a(n-2)+a(n-3)。那么第五项：? = 57*8 + 7 = 456+7=463。然后第六项：3370 = ?*57 + 8 = 463*57 + 8 = 26391+8=26399，不是3370。所以不是。\n\n也许：a(n) = a(n-1) * a(n-2) + a(n-1)? 8 = 7*1+1? 7*1+1=8，57 = 8*7+1? 8*7+1=57，但加的不是a(n-1)而是1？如果加的是a(n-2)? 8 = 7*1 + 1 (a(n-2))，57 = 8*7 + 1? 不，加的是a(n-3)? 57 = 8*7 + 1? 1是a(1)。那么下一项：? = 57*8 + 7 = 456+7=463，然后3370 = ?*57 + 8。如果?=463，463*57=26391，+8=26399。不对。\n\n也许模式是：a(n) = a(n-1)^2 + a(n-2)? 7^2+1=50，不。8^2+7=71，不。57^2+8=3257，不。\n\n也许模式涉及将数字视为字符串或数字操作？1,7,8,57: 1和7组成8？1和7拼在一起是17，不是8。7和8组成57？7和8拼成78？不是57。\n\n另一种想法：也许数列与递推关系有关，比如a(n) = p*a(n-1) + q*a(n-2)。对于三个已知项，我们可以解，但需要更多。\n\n让我们列出索引：n=1:1, n=2:7, n=3:8, n=4:57, n=5:?, n=6:3370。\n\n检查比率：7/1=7, 8/7≈1.14, 57/8=7.125, 3370/57≈59.12。没有明显模式。\n\n也许涉及乘法和加法与自身：7 = 1 * 7? 8 = 7 + 1? 57 = 8 * 7 + 1? 那么? = 57 * 8 + 7? 57*8=456, +7=463。然后3370 = ? * 57 + 8? 463*57=26391, +8=26399。不匹配。如果是? = 57 * 8 + 1? =457，那么3370 = 457 * 7? 457*7=3199，不。或者? = 57 * 7 + 8? =399+8=407? 57*7=399, +8=407。然后3370 = 407 * 8 + 57? 407*8=3256, +57=3313，不。407*8+? 不。\n\n也许模式是：a(n) = a(n-1) * a(n-2) + a(n-1) - something? \n\n另一种思路：也许这些数字是某个多项式序列的值？但通常这种智力题有简单模式。\n\n检查：1, 7, 8, 57, ?, 3370。注意7,8,57。8 = 2^3? 57 = 3^3? 3^3=27，不。7 = 2^3-1? 8=2^3? 57=4^3-7? 不。\n\n也许：1 = 1^2, 7 = 2^3-1? 8 = 2^3? 57 = 7^2+8? 7^2=49, 49+8=57。那么下一项：8^2+57? 64+57=121。然后121^2+? 或者57^2+121? 3249+121=3370! 等等，检查：57^2 + 121 = 3249 + 121 = 3370。是的！所以模式可能是：a(n) = a(n-2)^2 + a(n-1)? 让我们验证：\nn=3: a(1)^2 + a(2) = 1^2 + 7 = 1+7=8。正确。\nn=4: a(2)^2 + a(3) = 7^2 + 8 = 49+8=57。正确。\nn=5: a(3)^2 + a(4) = 8^2 + 57 = 64+57=121。正确。\nn=6: a(4)^2 + a(5) = 57^2 + 121 = 3249+121=3370。正确。\n\n所以空缺处的数字是121。\n\n验证整个序列：1, 7, 8, 57, 121, 3370。\n\n完美匹配。所以答案是121。","role":"assistant"}}]},"usage":{"input_tokens":102,"output_tokens":1941,"output_tokens_details":{"reasoning_tokens":1812},"prompt_tokens_details":{"cached_tokens":0},"total_tokens":2043},"request_id":"49319f28-a8ac-9ad2-8708-cb26014b083f"}
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.response.header.txt b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.response.header.txt
new file mode 100644
index 0000000..53fc591
--- /dev/null
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-effort-nosse.response.header.txt
@@ -0,0 +1,15 @@
+HTTP/1.1 200 OK
+vary: Origin,Access-Control-Request-Method,Access-Control-Request-Headers, Accept-Encoding
+content-type: application/json
+x-request-id: f8543326-e333-98d9-a3cf-eb0f22e254b6
+x-dashscope-call-gateway: true
+x-dashscope-finished: true
+x-dashscope-timeout: 3600
+req-cost-time: 1480
+req-arrive-time: 1781358949396
+resp-start-time: 1781358950876
+x-envoy-upstream-service-time: 1473
+date: Sat, 13 Jun 2026 13:55:50 GMT
+server: istio-envoy
+transfer-encoding: chunked
+request-duration: 1596
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.body.json
index 079da7b..a142c49 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.body.json
@@ -1,5 +1,5 @@
 {
-  "model": "deepseek-r1",
+  "model": "deepseek-v4-pro",
   "input": {
     "messages": [
       {
@@ -10,6 +10,7 @@
   },
   "parameters": {
     "incremental_output": false,
-    "result_format": "message"
+    "enable_thinking": true,
+    "max_completion_tokens": 20
   }
 }
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.header.txt b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.header.txt
index 4e58a1c..c85e5d6 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.header.txt
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.request.header.txt
@@ -1,8 +1,5 @@
-POST /api/v1/services/aigc/text-generation/generation HTTP/1.1
+POST https://dashscope.aliyuncs.com/api/v1/services/aigc/text-generation/generation
+Accept: application/json, text/plain, */*
 Content-Type: application/json
-Accept: */*
-Cache-Control: no-cache
-Host: dashscope.aliyuncs.com
-Accept-Encoding: gzip, deflate, br
-Connection: keep-alive
-Content-Length: 273
+User-Agent: bruno-runtime/3.4.2
+request-start-time: 1781356696233
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.body.txt b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.body.txt
index 9bc4376..6ad64b0 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.body.txt
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.body.txt
@@ -1 +1 @@
-{"output":{"choices":[{"finish_reason":"stop","message":{"role":"assistant","content":"1 + 1 等于 **2**。这是基础的算术加法，当我们将一个单位与另一个单位相加时，总和为两个单位。","reasoning_content":"嗯，用户问1加1等于多少。这个问题看起来很简单，但可能有一些需要注意的地方。首先，我得确认用户是不是真的在问基本的数学问题，还是有其他的意图，比如测试我的反应或者开玩笑。\n\n1加1在基础算术里确实是2，但有时候可能会有不同的解释，比如在二进制中1+1等于10，或者在逻辑学中有时候表示为1，如果是布尔代数的话。不过通常情况下，用户可能只需要最直接的答案，也就是2。\n\n不过也有可能用户想考察我是否能够处理更复杂的情况，或者是否有隐藏的意思。比如，在某些情况下，1加1可能被用来比喻合作的效果，比如“1+1大于2”，但这可能超出了当前问题的范围。\n\n我需要考虑用户的背景。如果用户是小学生，那么直接回答2是正确的，并且可能需要鼓励的话。如果是成年人，可能还是同样的答案，但不需要额外的解释。如果用户来自数学或计算机领域，可能需要确认是否需要其他进制的答案，但通常默认是十进制。\n\n另外，检查是否有拼写错误或非阿拉伯数字的情况，比如罗马数字的I+I，但问题里明确写的是1+1，所以应该是阿拉伯数字。\n\n总结下来，最安全也是最正确的答案就是2。不过为了确保，可以简短地确认用户的意图，但按照常规问题处理，直接回答即可。"}}]},"usage":{"total_tokens":313,"output_tokens":302,"input_tokens":11},"request_id":"7039d8ff-89e0-9191-b4d3-0d258a7d70e1"}
+{"output":{"choices":[{"finish_reason":"length","message":{"content":"","reasoning_content":"我们被问到：\"请问 1+1 是多少？\" 这是一个简单的问题。答案显然是","role":"assistant"}}]},"usage":{"input_tokens":12,"output_tokens":21,"output_tokens_details":{"reasoning_tokens":20},"prompt_tokens_details":{"cached_tokens":0},"total_tokens":33},"request_id":"7c8beccf-3e76-9034-95c1-db1f1ab9d6e0"}
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.header.txt b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.header.txt
index 5767ccb..8f81514 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.header.txt
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-reasoning-nosse.response.header.txt
@@ -1,15 +1,15 @@
 HTTP/1.1 200 OK
 vary: Origin,Access-Control-Request-Method,Access-Control-Request-Headers, Accept-Encoding
 content-type: application/json
-x-request-id: 7039d8ff-89e0-9191-b4d3-0d258a7d70e1
-x-dashscope-timeout: 180
+x-request-id: 7c8beccf-3e76-9034-95c1-db1f1ab9d6e0
 x-dashscope-call-gateway: true
 x-dashscope-finished: true
-req-cost-time: 11619
-req-arrive-time: 1742405583711
-resp-start-time: 1742405595330
-x-envoy-upstream-service-time: 11610
-content-encoding: gzip
-date: Wed, 19 Mar 2025 17:33:15 GMT
+x-dashscope-timeout: 1800
+req-cost-time: 1367
+req-arrive-time: 1781356754730
+resp-start-time: 1781356756098
+x-envoy-upstream-service-time: 1360
+date: Sat, 13 Jun 2026 13:19:15 GMT
 server: istio-envoy
 transfer-encoding: chunked
+request-duration: 1483
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-sse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-sse.request.body.json
index 6355ecf..63fa291 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-sse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-sse.request.body.json
@@ -11,7 +11,7 @@
   "parameters": {
     "result_format": "message",
     "seed": 1234,
-    "max_tokens": 1500,
+    "max_completion_tokens": 1500,
     "top_p": 0.8,
     "top_k": 100,
     "repetition_penalty": 1.1,
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-parallel-tools-sse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-parallel-tools-sse.request.body.json
index 540ce2c..034f5b5 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-parallel-tools-sse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-parallel-tools-sse.request.body.json
@@ -11,7 +11,6 @@
   "parameters": {
     "result_format": "message",
     "seed": 6999,
-    "max_tokens": 1500,
     "top_p": 0.8,
     "top_k": 100,
     "repetition_penalty": 1.1,
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-nosse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-nosse.request.body.json
index 7e41d14..6515ed4 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-nosse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-nosse.request.body.json
@@ -11,7 +11,6 @@
   "parameters": {
     "result_format": "message",
     "seed": 1234,
-    "max_tokens": 1500,
     "top_p": 0.8,
     "top_k": 100,
     "repetition_penalty": 1.1,
diff --git a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-sse.request.body.json b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-sse.request.body.json
index ac6f824..ae9afac 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-sse.request.body.json
+++ b/test/Cnblogs.DashScope.Tests.Shared/RawHttpData/single-generation-message-with-tools-sse.request.body.json
@@ -45,7 +45,6 @@
   "parameters": {
     "result_format": "message",
     "seed": 6999,
-    "max_tokens": 1500,
     "incremental_output": true,
     "tools": [
       {
diff --git a/test/Cnblogs.DashScope.Tests.Shared/Utils/Checkers.cs b/test/Cnblogs.DashScope.Tests.Shared/Utils/Checkers.cs
index c1c6d85..5194673 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/Utils/Checkers.cs
+++ b/test/Cnblogs.DashScope.Tests.Shared/Utils/Checkers.cs
@@ -1,4 +1,5 @@
-using System.Text.Json.Nodes;
+using System.Text.Json;
+using System.Text.Json.Nodes;
 using Cnblogs.DashScope.Core.Internals;
 
 namespace Cnblogs.DashScope.Tests.Shared.Utils;
@@ -60,19 +61,4 @@ public static bool IsJsonEquivalent(HttpContent content, string requestSnapshot)
         var expected = JsonNode.Parse(requestSnapshot);
         return JsonNode.DeepEquals(actual, expected);
     }
-
-    public static bool IsFileUploaded(HttpContent? content, params string[] files)
-    {
-        if (content is not MultipartFormDataContent form)
-        {
-            return false;
-        }
-
-        if (form.Count(x => x.GetType() == typeof(StreamContent)) != files.Length)
-        {
-            return false;
-        }
-
-        return true;
-    }
 }
diff --git a/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MicrosoftExtensionsAi.cs b/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MicrosoftExtensionsAi.cs
index b611e92..0683210 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MicrosoftExtensionsAi.cs
+++ b/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MicrosoftExtensionsAi.cs
@@ -23,7 +23,6 @@ public static readonly
                         {
                             ResultFormat = "message",
                             Seed = 6999,
-                            MaxTokens = 1500,
                             IncrementalOutput = true,
                             Tools = new List<ToolDefinition>
                             {
@@ -211,7 +210,6 @@ public static readonly
                         {
                             ResultFormat = "message",
                             Seed = 6999,
-                            MaxTokens = 1500,
                             IncrementalOutput = true,
                             Tools = new List<ToolDefinition>
                             {
diff --git a/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MultimodalGeneration.cs b/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MultimodalGeneration.cs
index 69c589f..e50b85e 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MultimodalGeneration.cs
+++ b/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.MultimodalGeneration.cs
@@ -43,7 +43,6 @@ public static partial class MultimodalGeneration
                         VlHighResolutionImages = true,
                         RepetitionPenalty = 1.3f,
                         PresencePenalty = 1.2f,
-                        MaxTokens = 120,
                         Stop = "你好"
                     }
                 },
@@ -95,7 +94,6 @@ public static partial class MultimodalGeneration
                         Temperature = 1.1f,
                         RepetitionPenalty = 1.3f,
                         PresencePenalty = 1.2f,
-                        MaxTokens = 120,
                     }
                 },
                 new ModelResponse<MultimodalOutput, MultimodalTokenUsage>
diff --git a/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.TextGeneration.cs b/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.TextGeneration.cs
index 5d9bded..35ca4c2 100644
--- a/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.TextGeneration.cs
+++ b/test/Cnblogs.DashScope.Tests.Shared/Utils/Snapshots.TextGeneration.cs
@@ -99,7 +99,7 @@ public static partial class MessageFormat
                         {
                             ResultFormat = "message",
                             Seed = 1234,
-                            MaxTokens = 1500,
+                            MaxCompletionTokens = 1500,
                             TopP = 0.8f,
                             TopK = 100,
                             RepetitionPenalty = 1.1f,
@@ -139,7 +139,7 @@ public static partial class MessageFormat
                     "single-generation-message-reasoning",
                     new ModelRequest<TextGenerationInput, ITextGenerationParameters>
                     {
-                        Model = "deepseek-r1",
+                        Model = "deepseek-v4-pro",
                         Input =
                             new TextGenerationInput
                             {
@@ -148,7 +148,55 @@ public static partial class MessageFormat
                             },
                         Parameters = new TextGenerationParameters
                         {
-                            IncrementalOutput = false, ResultFormat = ResultFormats.Message
+                            IncrementalOutput = false, EnableThinking = true, MaxCompletionTokens = 20
+                        }
+                    },
+                    new ModelResponse<TextGenerationOutput, TextGenerationTokenUsage>
+                    {
+                        Output = new TextGenerationOutput
+                        {
+                            Choices =
+                                new List<TextGenerationChoice>
+                                {
+                                    new()
+                                    {
+                                        FinishReason = "length",
+                                        Message =
+                                            TextChatMessage.Assistant(
+                                                string.Empty,
+                                                null,
+                                                null,
+                                                "我们被问到：\"请问 1+1 是多少？\" 这是一个简单的问题。答案显然是")
+                                    }
+                                }
+                        },
+                        RequestId = "7c8beccf-3e76-9034-95c1-db1f1ab9d6e0",
+                        Usage = new TextGenerationTokenUsage
+                        {
+                            TotalTokens = 33,
+                            OutputTokens = 21,
+                            InputTokens = 12,
+                            PromptTokensDetails = new TextGenerationPromptTokenDetails(0),
+                            OutputTokensDetails = new TextGenerationOutputTokenDetails(20)
+                        }
+                    });
+
+            public static readonly RequestSnapshot<ModelRequest<TextGenerationInput, ITextGenerationParameters>,
+                    ModelResponse<TextGenerationOutput, TextGenerationTokenUsage>>
+                SingleMessageReasoningEffort = new(
+                    "single-generation-message-reasoning-effort",
+                    new ModelRequest<TextGenerationInput, ITextGenerationParameters>
+                    {
+                        Model = "deepseek-v4-pro",
+                        Input =
+                            new TextGenerationInput
+                            {
+                                Messages =
+                                    new List<TextChatMessage> { TextChatMessage.User("填入数列“1，7，8，57，（ ），3370”空缺处的数字") }
+                            },
+                        Parameters = new TextGenerationParameters
+                        {
+                            IncrementalOutput = false, EnableThinking = true, ReasoningEffort = "xhigh"
                         }
                     },
                     new ModelResponse<TextGenerationOutput, TextGenerationTokenUsage>
@@ -163,19 +211,21 @@ public static partial class MessageFormat
                                         FinishReason = "stop",
                                         Message =
                                             TextChatMessage.Assistant(
-                                                "1 + 1 等于 **2**。这是基础的算术加法，当我们将一个单位与另一个单位相加时，总和为两个单位。",
+                                                "根据数列的规律，从第三项开始，每一项等于前第二项的平方加上前一项。具体验证如下：\n\n- 第三项：\\(1^2 + 7 = 8\\)\n- 第四项：\\(7^2 + 8 = 49 + 8 = 57\\)\n- 第五项：\\(8^2 + 57 = 64 + 57 = 121\\)\n- 第六项：\\(57^2 + 121 = 3249 + 121 = 3370\\)（与给定数列一致）\n\n因此，空缺处的数字应为 **121**。",
                                                 null,
                                                 null,
-                                                "嗯，用户问1加1等于多少。这个问题看起来很简单，但可能有一些需要注意的地方。首先，我得确认用户是不是真的在问基本的数学问题，还是有其他的意图，比如测试我的反应或者开玩笑。\n\n1加1在基础算术里确实是2，但有时候可能会有不同的解释，比如在二进制中1+1等于10，或者在逻辑学中有时候表示为1，如果是布尔代数的话。不过通常情况下，用户可能只需要最直接的答案，也就是2。\n\n不过也有可能用户想考察我是否能够处理更复杂的情况，或者是否有隐藏的意思。比如，在某些情况下，1加1可能被用来比喻合作的效果，比如“1+1大于2”，但这可能超出了当前问题的范围。\n\n我需要考虑用户的背景。如果用户是小学生，那么直接回答2是正确的，并且可能需要鼓励的话。如果是成年人，可能还是同样的答案，但不需要额外的解释。如果用户来自数学或计算机领域，可能需要确认是否需要其他进制的答案，但通常默认是十进制。\n\n另外，检查是否有拼写错误或非阿拉伯数字的情况，比如罗马数字的I+I，但问题里明确写的是1+1，所以应该是阿拉伯数字。\n\n总结下来，最安全也是最正确的答案就是2。不过为了确保，可以简短地确认用户的意图，但按照常规问题处理，直接回答即可。")
+                                                "我们被问到：\"填入数列“1，7，8，57，（ ），3370”空缺处的数字\"。这是一个数列推理问题。我们需要找出模式。\n\n数列：1, 7, 8, 57, ?, 3370。\n\n让我们检查可能的模式。通常，数列可能涉及乘法、加法、平方或其他运算。\n\n观察数字：1, 7, 8, 57, ?, 3370。\n\n让我们看看相邻项之间的关系：\n\n从1到7：7 = 1 * ? 或者1 + 6？或者1^2 + 6？或者1 * 7？\n\n从7到8：8 = 7 + 1？或者7 * 1 + 1？\n\n从8到57：57 = 8 * 7 + 1？8*7=56，56+1=57。注意7是前一项？或者8 * 7 + 1，其中7是前两项？实际上，1,7,8: 8 = 1*7 + 1? 1*7+1=8。然后57 = 7*8 + 1? 7*8=56, 56+1=57。那么下一项可能是8*57 + 1? 8*57=456, 456+1=457。但最后一项是3370。457不等于3370。或者可能是8*57 + ? 8*57=456, 3370-456=2914，不是明显模式。\n\n另一种模式：也许涉及平方：7 = 2^3 - 1? 1^2+6? 不明显。\n\n检查：1, 7, 8, 57。1^2+7? 1+49=50? 不。\n\n也许模式是：a(n) = a(n-2) * a(n-1) + something。我们已经试过加1：1*7+1=8，7*8+1=57，那么8*57+1=457，但下一项是3370，不是457。如果我们继续：57*457+? 太大。\n\n也许模式不是加1，而是加一个递增的数？1*7+1=8，7*8+1=57，8*57+?=下一个。如果下一个是X，那么57*X+?=3370。或者模式可能是：a(n) = a(n-1)^2 + a(n-2)？7^2+1=50? 不。8^2+7=71? 不。57^2+8=3249+8=3257，不是3370。57^2+?=3370 -> 3370-3249=121，121=11^2。不显然。\n\n另一种思路：也许这些数字与某种函数有关，比如阶乘或指数。\n\n1, 7, 8, 57, ?, 3370。\n\n检查差值：6, 1, 49, ?, ?。1=1^2, 49=7^2? 6不是平方。\n\n也许模式是：a(n) = a(n-1) * a(n-2) + a(n-3)? 对于第四项：57 = 8*7 + 1? 8*7+1=57，是a(n-1)*a(n-2)+a(n-3)。那么第五项：? = 57*8 + 7 = 456+7=463。然后第六项：3370 = ?*57 + 8 = 463*57 + 8 = 26391+8=26399，不是3370。所以不是。\n\n也许：a(n) = a(n-1) * a(n-2) + a(n-1)? 8 = 7*1+1? 7*1+1=8，57 = 8*7+1? 8*7+1=57，但加的不是a(n-1)而是1？如果加的是a(n-2)? 8 = 7*1 + 1 (a(n-2))，57 = 8*7 + 1? 不，加的是a(n-3)? 57 = 8*7 + 1? 1是a(1)。那么下一项：? = 57*8 + 7 = 456+7=463，然后3370 = ?*57 + 8。如果?=463，463*57=26391，+8=26399。不对。\n\n也许模式是：a(n) = a(n-1)^2 + a(n-2)? 7^2+1=50，不。8^2+7=71，不。57^2+8=3257，不。\n\n也许模式涉及将数字视为字符串或数字操作？1,7,8,57: 1和7组成8？1和7拼在一起是17，不是8。7和8组成57？7和8拼成78？不是57。\n\n另一种想法：也许数列与递推关系有关，比如a(n) = p*a(n-1) + q*a(n-2)。对于三个已知项，我们可以解，但需要更多。\n\n让我们列出索引：n=1:1, n=2:7, n=3:8, n=4:57, n=5:?, n=6:3370。\n\n检查比率：7/1=7, 8/7≈1.14, 57/8=7.125, 3370/57≈59.12。没有明显模式。\n\n也许涉及乘法和加法与自身：7 = 1 * 7? 8 = 7 + 1? 57 = 8 * 7 + 1? 那么? = 57 * 8 + 7? 57*8=456, +7=463。然后3370 = ? * 57 + 8? 463*57=26391, +8=26399。不匹配。如果是? = 57 * 8 + 1? =457，那么3370 = 457 * 7? 457*7=3199，不。或者? = 57 * 7 + 8? =399+8=407? 57*7=399, +8=407。然后3370 = 407 * 8 + 57? 407*8=3256, +57=3313，不。407*8+? 不。\n\n也许模式是：a(n) = a(n-1) * a(n-2) + a(n-1) - something? \n\n另一种思路：也许这些数字是某个多项式序列的值？但通常这种智力题有简单模式。\n\n检查：1, 7, 8, 57, ?, 3370。注意7,8,57。8 = 2^3? 57 = 3^3? 3^3=27，不。7 = 2^3-1? 8=2^3? 57=4^3-7? 不。\n\n也许：1 = 1^2, 7 = 2^3-1? 8 = 2^3? 57 = 7^2+8? 7^2=49, 49+8=57。那么下一项：8^2+57? 64+57=121。然后121^2+? 或者57^2+121? 3249+121=3370! 等等，检查：57^2 + 121 = 3249 + 121 = 3370。是的！所以模式可能是：a(n) = a(n-2)^2 + a(n-1)? 让我们验证：\nn=3: a(1)^2 + a(2) = 1^2 + 7 = 1+7=8。正确。\nn=4: a(2)^2 + a(3) = 7^2 + 8 = 49+8=57。正确。\nn=5: a(3)^2 + a(4) = 8^2 + 57 = 64+57=121。正确。\nn=6: a(4)^2 + a(5) = 57^2 + 121 = 3249+121=3370。正确。\n\n所以空缺处的数字是121。\n\n验证整个序列：1, 7, 8, 57, 121, 3370。\n\n完美匹配。所以答案是121。")
                                     }
                                 }
                         },
-                        RequestId = "7039d8ff-89e0-9191-b4d3-0d258a7d70e1",
+                        RequestId = "49319f28-a8ac-9ad2-8708-cb26014b083f",
                         Usage = new TextGenerationTokenUsage
                         {
-                            TotalTokens = 313,
-                            OutputTokens = 302,
-                            InputTokens = 11
+                            TotalTokens = 2043,
+                            OutputTokens = 1941,
+                            InputTokens = 102,
+                            PromptTokensDetails = new TextGenerationPromptTokenDetails(0),
+                            OutputTokensDetails = new TextGenerationOutputTokenDetails(1812)
                         }
                     });
 
@@ -196,7 +246,7 @@ public static partial class MessageFormat
                         {
                             ResultFormat = "message",
                             Seed = 1234,
-                            MaxTokens = 1500,
+                            MaxCompletionTokens = 1500,
                             TopP = 0.8f,
                             TopK = 100,
                             RepetitionPenalty = 1.1f,
@@ -654,7 +704,7 @@ public static readonly
                         {
                             ResultFormat = "message",
                             Seed = 1234,
-                            MaxTokens = 1500,
+                            MaxCompletionTokens = 1500,
                             TopP = 0.8f,
                             TopK = 100,
                             RepetitionPenalty = 1.1f,
@@ -754,7 +804,7 @@ public static readonly
                         {
                             ResultFormat = "message",
                             Seed = 1234,
-                            MaxTokens = 1500,
+                            MaxCompletionTokens = 1500,
                             TopP = 0.8f,
                             TopK = 100,
                             RepetitionPenalty = 1.1f,
@@ -805,7 +855,6 @@ public static readonly
                             {
                                 ResultFormat = "message",
                                 Seed = 1234,
-                                MaxTokens = 1500,
                                 TopP = 0.8f,
                                 TopK = 100,
                                 RepetitionPenalty = 1.1f,
@@ -879,7 +928,6 @@ public static readonly
                             {
                                 ResultFormat = "message",
                                 Seed = 6999,
-                                MaxTokens = 1500,
                                 TopP = 0.8f,
                                 TopK = 100,
                                 RepetitionPenalty = 1.1f,
@@ -1047,7 +1095,6 @@ public static readonly
                             {
                                 ResultFormat = "message",
                                 Seed = 6999,
-                                MaxTokens = 1500,
                                 IncrementalOutput = true,
                                 Tools = new List<ToolDefinition>
                                 {