Add turbo search mode support#22
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Adds `turbo` to the accepted Search API modes in ParallelWebSearchTool (the lowest-latency/lowest-cost tier, Parallel Search Turbo). Valid modes are now turbo, basic, and advanced (default advanced). - _VALID_MODES, mode Literal, field description, and class docstring updated - test_passthrough asserts turbo is accepted - CHANGELOG + version bump 0.4.0 -> 0.5.0 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Summary
Adds support for Parallel Search Turbo mode to
ParallelWebSearchTool. Today the tool hard-rejectsmode="turbo"(_VALID_MODES = {"basic", "advanced"}), so LangChain users can't reach the new lowest-latency/lowest-cost Search tier.Changes
_VALID_MODESnow includesturbomodetype widened toLiteral["turbo", "basic", "advanced"]test_passthroughassertsturbois accepted (legacyfast/one-shot/agenticstill correctly rejected)CHANGELOG.md+ version bump0.4.0→0.5.0Why
Turbo launches July 9 (p50 ~200ms, $1/1K). The docs at
parallel-web/documentationreferenceturbofor LangChain and note it requireslangchain-parallelv0.5.0+ — this PR is that release. The value is forwarded straight to the Search API, which already acceptsturbo.Notes
2026-07-XX) — set on release.🤖 Generated with Claude Code