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fix(openrouter): use extra_body for DeepSeek V3.1 Terminus reasoning control

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Roo Code 2025-10-25 04:06:24 +00:00
parent 97331bcb2e
commit 8bcbaf50b0
1 changed files with 28 additions and 2 deletions
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30
src/api/providers/openrouter.ts
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@ -60,6 +60,8 @@ type OpenRouterChatCompletionParams = OpenAI.Chat.ChatCompletionCreateParams & {
include_reasoning?: boolean
// https://openrouter.ai/docs/use-cases/reasoning-tokens
reasoning?: OpenRouterReasoningParams
// OpenRouter vendor-specific additional body for special templates (e.g., DeepSeek V3.1 Terminus)
extra_body?: Record<string, unknown>
}
// See `OpenAI.Chat.Completions.ChatCompletionChunk["usage"]`
@ -140,6 +142,16 @@ export class OpenRouterHandler extends BaseProvider implements SingleCompletionH
}
const transforms = (this.options.openRouterUseMiddleOutTransform ?? true) ? ["middle-out"] : undefined
const isDeepSeekV31Terminus = modelId.includes("DeepSeek-V3.1-Terminus")
// DeepSeek V3.1 Terminus uses chat_template_kwargs.thinking via extra_body on OpenRouter
const extra_body = isDeepSeekV31Terminus
? {
chat_template_kwargs: {
// Default OFF unless explicitly requested via reasoning settings
thinking: Boolean(reasoning) && !(reasoning as any)?.exclude,
},
}
: undefined
// https://openrouter.ai/docs/transforms
const completionParams: OpenRouterChatCompletionParams = {
@ -160,7 +172,9 @@ export class OpenRouterHandler extends BaseProvider implements SingleCompletionH
},
}),
...(transforms && { transforms }),
...(reasoning && { reasoning }),
...(extra_body && { extra_body }),
// Do not pass OpenRouter "reasoning" param for DeepSeek V3.1 Terminus; use extra_body instead
...(!isDeepSeekV31Terminus && reasoning ? { reasoning } : {}),
}
let stream
@ -248,6 +262,16 @@ export class OpenRouterHandler extends BaseProvider implements SingleCompletionH
async completePrompt(prompt: string) {
let { id: modelId, maxTokens, temperature, reasoning } = await this.fetchModel()
const isDeepSeekV31Terminus = modelId.includes("DeepSeek-V3.1-Terminus")
const extra_body = isDeepSeekV31Terminus
? {
chat_template_kwargs: {
// Default OFF unless explicitly requested via reasoning settings
thinking: Boolean(reasoning) && !(reasoning as any)?.exclude,
},
}
: undefined
const completionParams: OpenRouterChatCompletionParams = {
model: modelId,
max_tokens: maxTokens,
@ -263,7 +287,9 @@ export class OpenRouterHandler extends BaseProvider implements SingleCompletionH
allow_fallbacks: false,
},
}),
...(reasoning && { reasoning }),
...(extra_body && { extra_body }),
// Do not pass OpenRouter "reasoning" param for DeepSeek V3.1 Terminus; use extra_body instead
...(!isDeepSeekV31Terminus && reasoning ? { reasoning } : {}),
}
let response