Add model settings for Gemini 3.1 Pro Preview and Flash-Lite#5166
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Cyberfilo wants to merge 1 commit into
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Add model settings for Gemini 3.1 Pro Preview and Flash-Lite#5166Cyberfilo wants to merge 1 commit into
Cyberfilo wants to merge 1 commit into
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Adds entries to aider/resources/model-settings.yml for the gemini-3.1-pro-preview and gemini-3.1-flash-lite models across the gemini/, vertex_ai/, and openrouter/google/ providers. These models already have pricing/context-window metadata in litellm's model cost map (the upstream that aider pulls from) but were missing the project-side settings (edit_format, weak_model_name, etc.), so aider falls back to defaults that are wrong for the diff-fenced edit format the 3.x line expects. The configuration mirrors the existing gemini-3-pro-preview / gemini-3-flash-preview entries: diff-fenced edit format, repo map enabled, thinking_tokens accepted, with the pro variant routed through flash-lite for weak/editor model duties. Also adds a HISTORY.md entry under the main branch section.
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Summary
Adds entries to
aider/resources/model-settings.ymlfor the recently released Gemini 3.1 Pro Preview and Gemini 3.1 Flash-Lite models across three providers: nativegemini/,vertex_ai/, andopenrouter/google/.These models already have pricing and context-window metadata in litellm's
model_prices_and_context_window.json(the upstream aider pulls from atModelInfoManager.MODEL_INFO_URL), but were missing the project-side settings (edit_format,weak_model_name,accepts_settings, etc.). Without explicit settings, aider falls back to defaults that don't match the diff-fenced edit format the 3.x Gemini line expects, so users have to override per-model on the CLI.Models added
gemini/gemini-3.1-pro-previewgemini/gemini-3.1-flash-litevertex_ai/gemini-3.1-pro-previewvertex_ai/gemini-3.1-flash-liteopenrouter/google/gemini-3.1-pro-previewopenrouter/google/gemini-3.1-flash-liteSettings shape
Mirrors the existing
gemini-3-pro-preview/gemini-3-flash-previewblock:edit_format: diff-fenced(the 3.x line's preferred edit grammar)use_repo_map: trueovereager: trueaccepts_settings: [\"thinking_tokens\"]flash-liteforweak_model_name(andeditor_model_nameon Vertex), matching the cost-tiered weak-model pattern used elsewhere in the file.Test plan
Notes
I considered also adding the
-customtoolsand-image-previewvariants ofgemini-3.1-pro-previewthat litellm tracks, but skipped them — they're niche variants without a clear edit-flow use case in aider. Happy to add if a maintainer wants them in.