Support reasoning

Author: mrubens

src/api/providers/chutes.ts

@@ -53,6 +53,11 @@ export class ChutesHandler extends RouterProvider implements SingleCompletionHan
 			params.temperature = this.options.modelTemperature ?? info.temperature
 		}
 
+		// Add thinking parameter if reasoning is enabled and model supports it
+		if (this.options.enableReasoningEffort && info.supportsReasoningBinary) {
+			;(params as any).thinking = { type: "enabled" }
+		}
+
 		return params
 	}
 
@@ -111,6 +116,10 @@ export class ChutesHandler extends RouterProvider implements SingleCompletionHan
 					yield { type: "text", text: delta.content }
 				}
 
+				if (delta && "reasoning_content" in delta && delta.reasoning_content) {
+					yield { type: "reasoning", text: (delta.reasoning_content as string | undefined) || "" }
+				}
+
 				if (chunk.usage) {
 					yield {
 						type: "usage",

src/api/providers/fetchers/chutes.ts

@@ -14,6 +14,7 @@ const ChutesModelSchema = z.object({
 	context_length: z.number(),
 	max_model_len: z.number(),
 	input_modalities: z.array(z.string()),
+	supported_features: z.array(z.string()).optional(),
 })
 
 const ChutesModelsResponseSchema = z.object({ data: z.array(ChutesModelSchema) })
@@ -35,12 +36,14 @@ export async function getChutesModels(apiKey?: string): Promise<Record<string, M
 			const contextWindow = m.context_length
 			const maxTokens = m.max_model_len
 			const supportsImages = m.input_modalities.includes("image")
+			const supportsReasoningBinary = m.supported_features?.includes("reasoning") ?? false
 
 			const info: ModelInfo = {
 				maxTokens,
 				contextWindow,
 				supportsImages,
 				supportsPromptCache: false,
+				supportsReasoningBinary,
 				inputPrice: 0,
 				outputPrice: 0,
 				description: `Chutes AI model: ${m.id}`,