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fix(provider): only set thinkingConfig for models with reasoning capability #18283

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Merged
rekram1-node merged 2 commits into from
Mar 21, 2026
Merged

fix(provider): only set thinkingConfig for models with reasoning capability #18283

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f39b1e8
fix(provider): only set thinkingConfig for models with reasoning capa…
Protocol-zero-0 Mar 19, 2026
14e52de
test(provider): cover google thinkingConfig capability gating
Protocol-zero-0 Mar 20, 2026
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12 changes: 7 additions & 5 deletions packages/opencode/src/provider/transform.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -755,11 +755,13 @@ export namespace ProviderTransform {
}

if (input.model.api.npm === "@ai-sdk/google" || input.model.api.npm === "@ai-sdk/google-vertex") {
result["thinkingConfig"] = {
includeThoughts: true,
}
if (input.model.api.id.includes("gemini-3")) {
result["thinkingConfig"]["thinkingLevel"] = "high"
if (input.model.capabilities.reasoning) {
result["thinkingConfig"] = {
includeThoughts: true,
}
if (input.model.api.id.includes("gemini-3")) {
result["thinkingConfig"]["thinkingLevel"] = "high"
}
}
Comment on lines 757 to 765
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Copilot AI Mar 19, 2026

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Add unit coverage for this new gating to prevent regressions: ProviderTransform.options should NOT set thinkingConfig for Google/Vertex models when model.capabilities.reasoning is false (e.g. gemini-2.0-flash), and should set it when reasoning is true. There are existing ProviderTransform.options tests in packages/opencode/test/provider/transform.test.ts, but none currently assert this Google/Vertex behavior.

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}

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