Add Gemini 3.1 Pro support and set Gemini default model#11608
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hannesrudolph merged 1 commit intoRooCodeInc:mainfrom Feb 19, 2026
Merged
Add Gemini 3.1 Pro support and set Gemini default model#11608hannesrudolph merged 1 commit intoRooCodeInc:mainfrom
hannesrudolph merged 1 commit intoRooCodeInc:mainfrom
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Add Gemini 3.1 model entries for Gemini and Vertex providers. Include the Gemini custom-tools endpoint model id in Gemini provider. Update geminiDefaultModelId to gemini-3.1-pro-preview. References: - https://ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview - https://ai.google.dev/gemini-api/docs/pricing - https://ai.google.dev/gemini-api/docs/thinking - https://cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/3-1-pro - https://cloud.google.com/vertex-ai/generative-ai/pricing - https://cloud.google.com/blog/products/ai-machine-learning/gemini-3-1-pro-on-gemini-cli-gemini-enterprise-and-vertex-ai - https://deepmind.google/models/model-cards/gemini-3-1-pro/ - https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-1-pro/
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Feb 19, 2026
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Description
This PR adds Gemini 3.1 Pro preview model support to provider metadata and
updates the default Gemini model selection.
Implemented changes:
gemini-3.1-pro-previewto:packages/types/src/providers/gemini.tspackages/types/src/providers/vertex.tsgemini-3.1-pro-preview-customtoolsto:packages/types/src/providers/gemini.tsgeminiDefaultModelIdfromgemini-3-pro-previewtogemini-3.1-pro-preview.mediumto Gemini 3.1supportsReasoningEffortmetadata so a user’smediumsetting is preserved instead of silently falling back.Reference URLs:
Test Procedure
pnpm --filter @roo-code/types check-typespnpm --filter roo-cline exec vitest run api/providers/__tests__/gemini.spec.ts api/providers/__tests__/vertex.spec.tsPre-Submission Checklist
Screenshots / Videos
N/A (no UI changes)
Documentation Updates
Start a new Roo Code Cloud session on this branch