diff --git a/modules/openapi-generator/src/main/resources/typescript-fetch/modelGenericInterfaces.mustache b/modules/openapi-generator/src/main/resources/typescript-fetch/modelGenericInterfaces.mustache
index 7d6aceec7a5e..82420811d764 100644
--- a/modules/openapi-generator/src/main/resources/typescript-fetch/modelGenericInterfaces.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-fetch/modelGenericInterfaces.mustache
@@ -1,3 +1,6 @@
+{{#validationAttributes}}
+import type { PropertyValidationAttributes } from '../runtime{{importFileExtension}}';
+{{/validationAttributes}}
 /**
  * {{#lambda.indented_star_1}}{{{unescapedDescription}}}{{/lambda.indented_star_1}}
  * @export
diff --git a/modules/openapi-generator/src/main/resources/typescript-fetch/runtime.mustache b/modules/openapi-generator/src/main/resources/typescript-fetch/runtime.mustache
index 235458a2df2f..d3ad8212878f 100644
--- a/modules/openapi-generator/src/main/resources/typescript-fetch/runtime.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-fetch/runtime.mustache
@@ -444,3 +444,21 @@ export class TextApiResponse {
         return await this.raw.text();
     };
 }
+{{#validationAttributes}}
+
+export interface PropertyValidationAttributes {
+    dataType?: string,
+    required?: boolean,
+    maxLength?: number,
+    minLength?: number,
+    pattern?: string,
+    maximum?: number,
+    exclusiveMaximum?: boolean,
+    minimum?: number,
+    exclusiveMinimum?: boolean,
+    multipleOf?: number,
+    maxItems?: number,
+    minItems?: number,
+    uniqueItems?: boolean
+}
+{{/validationAttributes}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/typescript-fetch/validationAttributes.mustache b/modules/openapi-generator/src/main/resources/typescript-fetch/validationAttributes.mustache
index 9b338f359c3c..9d2bb22ab3af 100644
--- a/modules/openapi-generator/src/main/resources/typescript-fetch/validationAttributes.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-fetch/validationAttributes.mustache
@@ -1,22 +1,6 @@
 {{#validationAttributes}}
 
-export const {{classname}}PropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
+export const {{classname}}PropertyValidationAttributesMap = {
 {{#vars}}
 {{#hasValidation}}
     {{name}}: {
@@ -58,7 +42,7 @@ export const {{classname}}PropertyValidationAttributesMap: {
     },
 {{/hasValidation}}
 {{/vars}}
-}
+} satisfies Record<string, PropertyValidationAttributes>;
 {{#isAdditionalPropertiesTrue}}
 
 export const {{classname}}AdditionalPropertiesValidationAttributes: { maxProperties?: number, minProperties?: number } = {
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/fetch/TypeScriptFetchClientCodegenTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/fetch/TypeScriptFetchClientCodegenTest.java
index 0ba3cd8a5305..45ff28e5a5bd 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/fetch/TypeScriptFetchClientCodegenTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/fetch/TypeScriptFetchClientCodegenTest.java
@@ -157,7 +157,7 @@ public void toVarName() {
         codegen.processOpts();
         Assert.assertEquals(codegen.toVarName("valid_var"), "valid_var");
     }
-    
+
     @Test
     public void toVarNameWithAtSign() {
         TypeScriptFetchClientCodegen codegen = new TypeScriptFetchClientCodegen();
@@ -577,7 +577,31 @@ public void testValidationAttributesWithWithoutRuntimeChecks() throws IOExceptio
         Path modelsIndex = Paths.get(output + "/models/index.ts");
         TestUtils.assertFileExists(modelsIndex);
         TestUtils.assertFileContains(modelsIndex, "PetPropertyValidationAttributesMap");
-        TestUtils.assertFileContains(modelsIndex, "[property: string]:");
+        TestUtils.assertFileContains(modelsIndex, "satisfies Record<string, PropertyValidationAttributes>");
+        TestUtils.assertFileContains(modelsIndex, "import type { PropertyValidationAttributes } from '../runtime';");
+
+        Path runtime = Paths.get(output + "/runtime.ts");
+        TestUtils.assertFileExists(runtime);
+        TestUtils.assertFileContains(runtime, "export interface PropertyValidationAttributes");
+    }
+
+    @Test(description = "Verify validationAttributes not exist with validationAttributes=false")
+    public void testValidationAttributesNotExistWithFalse() throws IOException {
+        Map<String, Object> properties = new HashMap<>();
+        properties.put(TypeScriptFetchClientCodegen.VALIDATION_ATTRIBUTES, false);
+        properties.put(TypeScriptFetchClientCodegen.WITHOUT_RUNTIME_CHECKS, true);
+
+        File output = generate(properties, "src/test/resources/3_0/typescript-fetch/validation-attributes.yaml");
+
+        Path modelsIndex = Paths.get(output + "/models/index.ts");
+        TestUtils.assertFileExists(modelsIndex);
+        TestUtils.assertFileNotContains(modelsIndex, "PetPropertyValidationAttributesMap");
+        TestUtils.assertFileNotContains(modelsIndex, "satisfies Record<string, PropertyValidationAttributes>");
+        TestUtils.assertFileNotContains(modelsIndex, "import type { PropertyValidationAttributes } from '../runtime';");
+
+        Path runtime = Paths.get(output + "/runtime.ts");
+        TestUtils.assertFileExists(runtime);
+        TestUtils.assertFileNotContains(runtime, "export interface PropertyValidationAttributes");
     }
 
     @Test(description = "Verify pattern is not HTML-escaped in validationAttributes")
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Category.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Category.ts
index 7a5fb6a636ea..d5f6f2a02d6e 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Category.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Category.ts
@@ -13,6 +13,7 @@
  */
 
 import { mapValues } from '../runtime';
+import type { PropertyValidationAttributes } from '../runtime';
 /**
  * A category for a pet
  * @export
@@ -28,28 +29,12 @@ export interface Category {
      */
     name?: string;
 }
-export const CategoryPropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
+export const CategoryPropertyValidationAttributesMap = {
     name: {
         dataType: "string",
         pattern: '/^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$/',
     },
-}
+} satisfies Record<string, PropertyValidationAttributes>;
 
 
 /**
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/ModelApiResponse.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/ModelApiResponse.ts
index 94dbefb8376a..2206c316c65b 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/ModelApiResponse.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/ModelApiResponse.ts
@@ -13,6 +13,7 @@
  */
 
 import { mapValues } from '../runtime';
+import type { PropertyValidationAttributes } from '../runtime';
 /**
  * Describes the result of uploading an image resource
  * @export
@@ -32,24 +33,8 @@ export interface ModelApiResponse {
      */
     message?: string;
 }
-export const ModelApiResponsePropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
-}
+export const ModelApiResponsePropertyValidationAttributesMap = {
+} satisfies Record<string, PropertyValidationAttributes>;
 
 
 /**
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Order.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Order.ts
index 0ad9b3725c98..8bae1862d851 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Order.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Order.ts
@@ -13,6 +13,7 @@
  */
 
 import { mapValues } from '../runtime';
+import type { PropertyValidationAttributes } from '../runtime';
 /**
  * An order for a pets from the pet store
  * @export
@@ -57,24 +58,8 @@ export const OrderStatusEnum = {
 } as const;
 export type OrderStatusEnum = typeof OrderStatusEnum[keyof typeof OrderStatusEnum];
 
-export const OrderPropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
-}
+export const OrderPropertyValidationAttributesMap = {
+} satisfies Record<string, PropertyValidationAttributes>;
 
 export const OrderAdditionalPropertiesValidationAttributes: { maxProperties?: number, minProperties?: number } = {
     maxProperties: 10,
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Pet.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Pet.ts
index cde0e7b42de0..bebf27bf2de4 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Pet.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Pet.ts
@@ -28,6 +28,7 @@ import {
     TagToJSONTyped,
 } from './Tag';
 
+import type { PropertyValidationAttributes } from '../runtime';
 /**
  * A pet for sale in the pet store
  * @export
@@ -72,23 +73,7 @@ export const PetStatusEnum = {
 } as const;
 export type PetStatusEnum = typeof PetStatusEnum[keyof typeof PetStatusEnum];
 
-export const PetPropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
+export const PetPropertyValidationAttributesMap = {
     photoUrls: {
         dataType: "Set<string>",
         required: true,
@@ -96,7 +81,7 @@ export const PetPropertyValidationAttributesMap: {
         minItems: 1,
         uniqueItems: true,
     },
-}
+} satisfies Record<string, PropertyValidationAttributes>;
 
 
 /**
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Tag.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Tag.ts
index b6222ddd699c..21ebcef9eae0 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Tag.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/Tag.ts
@@ -13,6 +13,7 @@
  */
 
 import { mapValues } from '../runtime';
+import type { PropertyValidationAttributes } from '../runtime';
 /**
  * A tag for a pet
  * @export
@@ -28,24 +29,8 @@ export interface Tag {
      */
     name?: string;
 }
-export const TagPropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
-}
+export const TagPropertyValidationAttributesMap = {
+} satisfies Record<string, PropertyValidationAttributes>;
 
 
 /**
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/User.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/User.ts
index af745c1ee60e..132241b837ac 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/User.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/models/User.ts
@@ -13,6 +13,7 @@
  */
 
 import { mapValues } from '../runtime';
+import type { PropertyValidationAttributes } from '../runtime';
 /**
  * A User who is purchasing from the pet store
  * @export
@@ -56,23 +57,7 @@ export interface User {
      */
     userStatus?: number;
 }
-export const UserPropertyValidationAttributesMap: {
-    [property: string]: {
-        dataType?: string,
-        required?: boolean,
-        maxLength?: number,
-        minLength?: number,
-        pattern?: string,
-        maximum?: number,
-        exclusiveMaximum?: boolean,
-        minimum?: number,
-        exclusiveMinimum?: boolean,
-        multipleOf?: number,
-        maxItems?: number,
-        minItems?: number,
-        uniqueItems?: boolean
-    }
-} = {
+export const UserPropertyValidationAttributesMap = {
     password: {
         dataType: "string",
         maxLength: 256,
@@ -90,7 +75,7 @@ export const UserPropertyValidationAttributesMap: {
         exclusiveMinimum: true,
         multipleOf: 10,
     },
-}
+} satisfies Record<string, PropertyValidationAttributes>;
 
 
 /**
diff --git a/samples/client/petstore/typescript-fetch/builds/validation-attributes/runtime.ts b/samples/client/petstore/typescript-fetch/builds/validation-attributes/runtime.ts
index 3389e4beb1cc..9a48c04ffde9 100644
--- a/samples/client/petstore/typescript-fetch/builds/validation-attributes/runtime.ts
+++ b/samples/client/petstore/typescript-fetch/builds/validation-attributes/runtime.ts
@@ -452,3 +452,19 @@ export class TextApiResponse {
         return await this.raw.text();
     };
 }
+
+export interface PropertyValidationAttributes {
+    dataType?: string,
+    required?: boolean,
+    maxLength?: number,
+    minLength?: number,
+    pattern?: string,
+    maximum?: number,
+    exclusiveMaximum?: boolean,
+    minimum?: number,
+    exclusiveMinimum?: boolean,
+    multipleOf?: number,
+    maxItems?: number,
+    minItems?: number,
+    uniqueItems?: boolean
+}