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fix(core): add aliases and thinking config for gemini-3.1 models #27007

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Merged
scidomino merged 6 commits into from
May 15, 2026
Merged

fix(core): add aliases and thinking config for gemini-3.1 models #27007

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6dd60e8
fix(core): add aliases and thinking config for gemini-3.1 models
anishs1207 May 13, 2026
63012e2
Merge branch 'main' into fix/core-handle-invalid-argument
anishs1207 May 13, 2026
6d28ac8
Merge branch 'main' into fix/core-handle-invalid-argument
anishs1207 May 14, 2026
26807a7
Merge branch 'main' into fix/core-handle-invalid-argument
anishs1207 May 14, 2026
5cfb431
Merge branch 'main' into fix/core-handle-invalid-argument
anishs1207 May 14, 2026
525615f
fix: updated model config golden files
anishs1207 May 15, 2026
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18 changes: 18 additions & 0 deletions docs/reference/configuration.md
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Expand Up @@ -550,6 +550,24 @@ their corresponding top-level category object in your `settings.json` file.
"model": "gemini-3-flash-preview"
}
},
"gemini-3.1-pro-preview": {
"extends": "chat-base-3",
"modelConfig": {
"model": "gemini-3.1-pro-preview"
}
},
"gemini-3.1-pro-preview-customtools": {
"extends": "chat-base-3",
"modelConfig": {
"model": "gemini-3.1-pro-preview-customtools"
}
},
"gemini-3.1-flash-lite-preview": {
"extends": "chat-base-3",
"modelConfig": {
"model": "gemini-3.1-flash-lite-preview"
}
},
"gemini-2.5-pro": {
"extends": "chat-base-2.5",
"modelConfig": {
Expand Down
18 changes: 18 additions & 0 deletions packages/core/src/config/defaultModelConfigs.ts
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Expand Up @@ -71,6 +71,24 @@ export const DEFAULT_MODEL_CONFIGS: ModelConfigServiceConfig = {
model: 'gemini-3-flash-preview',
},
},
'gemini-3.1-pro-preview': {
extends: 'chat-base-3',
modelConfig: {
model: 'gemini-3.1-pro-preview',
},
},
'gemini-3.1-pro-preview-customtools': {
extends: 'chat-base-3',
modelConfig: {
model: 'gemini-3.1-pro-preview-customtools',
},
},
'gemini-3.1-flash-lite-preview': {
extends: 'chat-base-3',
modelConfig: {
model: 'gemini-3.1-flash-lite-preview',
},
},
'gemini-2.5-pro': {
extends: 'chat-base-2.5',
modelConfig: {
Expand Down
32 changes: 32 additions & 0 deletions packages/core/src/config/models.test.ts
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Expand Up @@ -380,7 +380,7 @@
expect(supportsMultimodalFunctionResponse('gemini-3-pro')).toBe(true);
});

it('should return false for gemini-2 models', () => {

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expect(supportsMultimodalFunctionResponse('gemini-2.5-pro')).toBe(false);
expect(supportsMultimodalFunctionResponse('gemini-2.5-flash')).toBe(false);
});
Expand Down Expand Up @@ -672,3 +672,35 @@
).toBe(false);
});
});

describe('Gemini 3.1 Config Resolution', () => {
it('PREVIEW_GEMINI_3_1_MODEL should resolve to chat-base-3 config (including thinkingLevel)', () => {
const resolved = modelConfigService.getResolvedConfig({
model: PREVIEW_GEMINI_3_1_MODEL,
isChatModel: true,
});
expect(
resolved.generateContentConfig?.thinkingConfig?.thinkingLevel,
).toBeDefined();
});

it('PREVIEW_GEMINI_3_1_CUSTOM_TOOLS_MODEL should resolve to chat-base-3 config (including thinkingLevel)', () => {
const resolved = modelConfigService.getResolvedConfig({
model: PREVIEW_GEMINI_3_1_CUSTOM_TOOLS_MODEL,
isChatModel: true,
});
expect(
resolved.generateContentConfig?.thinkingConfig?.thinkingLevel,
).toBeDefined();
});

it('PREVIEW_GEMINI_3_1_FLASH_LITE_MODEL should resolve to chat-base-3 config (including thinkingLevel)', () => {
const resolved = modelConfigService.getResolvedConfig({
model: PREVIEW_GEMINI_3_1_FLASH_LITE_MODEL,
isChatModel: true,
});
expect(
resolved.generateContentConfig?.thinkingConfig?.thinkingLevel,
).toBeDefined();
});
});
36 changes: 36 additions & 0 deletions packages/core/src/services/test-data/resolved-aliases-retry.golden.json
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Expand Up @@ -61,6 +61,42 @@
"topK": 64
}
},
"gemini-3.1-pro-preview": {
"model": "gemini-3.1-pro-preview",
"generateContentConfig": {
"temperature": 1,
"topP": 0.95,
"thinkingConfig": {
"includeThoughts": true,
"thinkingLevel": "HIGH"
},
"topK": 64
}
},
"gemini-3.1-pro-preview-customtools": {
"model": "gemini-3.1-pro-preview-customtools",
"generateContentConfig": {
"temperature": 1,
"topP": 0.95,
"thinkingConfig": {
"includeThoughts": true,
"thinkingLevel": "HIGH"
},
"topK": 64
}
},
"gemini-3.1-flash-lite-preview": {
"model": "gemini-3.1-flash-lite-preview",
"generateContentConfig": {
"temperature": 1,
"topP": 0.95,
"thinkingConfig": {
"includeThoughts": true,
"thinkingLevel": "HIGH"
},
"topK": 64
}
},
"gemini-2.5-pro": {
"model": "gemini-2.5-pro",
"generateContentConfig": {
Expand Down
36 changes: 36 additions & 0 deletions packages/core/src/services/test-data/resolved-aliases.golden.json
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Expand Up @@ -61,6 +61,42 @@
"topK": 64
}
},
"gemini-3.1-pro-preview": {
"model": "gemini-3.1-pro-preview",
"generateContentConfig": {
"temperature": 1,
"topP": 0.95,
"thinkingConfig": {
"includeThoughts": true,
"thinkingLevel": "HIGH"
},
"topK": 64
}
},
"gemini-3.1-pro-preview-customtools": {
"model": "gemini-3.1-pro-preview-customtools",
"generateContentConfig": {
"temperature": 1,
"topP": 0.95,
"thinkingConfig": {
"includeThoughts": true,
"thinkingLevel": "HIGH"
},
"topK": 64
}
},
"gemini-3.1-flash-lite-preview": {
"model": "gemini-3.1-flash-lite-preview",
"generateContentConfig": {
"temperature": 1,
"topP": 0.95,
"thinkingConfig": {
"includeThoughts": true,
"thinkingLevel": "HIGH"
},
"topK": 64
}
},
"gemini-2.5-pro": {
"model": "gemini-2.5-pro",
"generateContentConfig": {
Expand Down
40 changes: 38 additions & 2 deletions schemas/settings.schema.json
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