fix: Exclude reasoning parameter for WebLLM model compatibility

Author: NekoWings

utils/llm/models.ts

@@ -112,6 +112,7 @@ export async function getModel(options: {
       },
     })
     options.onLoadingModel?.({ type: 'finished' })
+    // WebLLM does not support reasoning parameter, so we do not pass it
     model = new WebLLMChatLanguageModel(
       options.model,
       engine,

utils/llm/providers/web-llm/openai-compatible-chat-language-model.ts

@@ -144,7 +144,8 @@ export class WebLLMChatLanguageModel implements LanguageModelV1 {
       seed,
       ...providerMetadata?.[this.providerOptionsName],
 
-      reasoning_effort: providerMetadata?.[this.providerOptionsName]?.reasoningEffort ?? providerMetadata?.['openai-compatible']?.reasoningEffort,
+      // Note: WebLLM does not support reasoning_effort parameter
+      // This parameter is ignored for WebLLM models
 
       // messages:
       messages: convertToOpenAICompatibleChatMessages(prompt),