changes

app/api/chat/title/route.ts

@@ -20,13 +20,28 @@ export async function POST(request: NextRequest) {
       return NextResponse.json({ error: 'Model and messages array are required' }, { status: 400 });
     }
 
-    // Format the conversation for context
+    // Format the conversation for context (truncate long messages)
     const conversationContext = messages
-      .map((msg: Message) => `${msg.role === 'user' ? 'User' : 'Assistant'}: ${msg.content}`)
+      .map((msg: Message) => {
+        const role = msg.role === 'user' ? 'User' : 'Assistant';
+        const content = msg.content.length > 300 ? `${msg.content.slice(0, 300)}...` : msg.content;
+        return `${role}: ${content}`;
+      })
       .join('\n\n');
 
     // Create a prompt asking for a short title with full context
-    const systemPrompt = `You are a helpful assistant that generates very short, descriptive titles for conversations. Based on the conversation below, generate a concise title (3-6 words maximum) that captures the main topic or intent. Reply with ONLY the title text, nothing else - no quotes, no prefixes, no explanation.`;
+    const systemPrompt = `Your task is to generate a SHORT title (3-6 words) for a conversation.
+
+Rules:
+- Output ONLY the title, nothing else
+- No quotes, no "Title:" prefix, no explanation
+- Maximum 6 words
+- Be descriptive but concise
+- Examples of good titles:
+  - "Weather Comparison Three Cities"
+  - "Python Debugging Help"
+  - "Recipe for Chocolate Cake"
+  - "React Component Tutorial"`;
 
     const response = await ollama.chat({
       model,
@@ -34,31 +49,48 @@ export async function POST(request: NextRequest) {
         { role: 'system', content: systemPrompt },
         {
           role: 'user',
-          content: `Generate a short title for this conversation:\n\n${conversationContext}`,
+          content: `Conversation:\n\n${conversationContext}\n\nGenerate a 3-6 word title:`,
         },
       ],
       options: {
-        temperature: 0.7,
-        num_predict: 25, // Limit output length
+        temperature: 0.3, // Lower temperature for more focused output
+        num_predict: 20, // Limit output length
       },
     });
 
-    // Clean up the response - remove quotes, extra whitespace, etc.
+    // eslint-disable-next-line no-console
+    console.log('[Title API] Raw model response:', response.message.content);
+
+    // Clean up the response - remove quotes, extra whitespace, thinking, etc.
     let title = response.message.content
       .trim()
+      .replace(/<think>[\s\S]*?<\/think>/g, '') // Remove thinking tags
       .replace(/^["']|["']$/g, '') // Remove surrounding quotes
       .replace(/^Title:\s*/i, '') // Remove "Title:" prefix if present
+      .replace(/^["']|["']$/g, '') // Remove quotes again after prefix removal
       .replace(/\n.*/g, '') // Only keep first line
       .trim();
 
-    // Fallback if title is empty or too long
-    if (!title || title.length > 50) {
+    // If still too long, take first 6 words
+    const words = title.split(/\s+/);
+    if (words.length > 6) {
+      title = words.slice(0, 6).join(' ');
+    }
+
+    // Fallback if title is empty or suspiciously long (model didn't follow instructions)
+    if (!title || title.length > 60) {
       const firstUserMessage = messages.find((m: Message) => m.role === 'user')?.content || '';
-      title = firstUserMessage.slice(0, 30) + (firstUserMessage.length > 30 ? '...' : '');
+      // Extract key words instead of just truncating
+      const keyWords = firstUserMessage
+        .replace(/[?!.,]/g, '')
+        .split(/\s+/)
+        .slice(0, 5)
+        .join(' ');
+      title = keyWords || 'New Chat';
     }
 
     // eslint-disable-next-line no-console
-    console.log('[Title API] Generated title:', title);
+    console.log('[Title API] Final title:', title);
 
     return NextResponse.json({ title });
   } catch (error) {