hello

main.py

@@ -293,12 +293,12 @@ async def chat_endpoint(request: ChatRequest):
             detail="Model not loaded yet. Please wait for initialization."
         )
     
-    # Validate input
+    # Validate input - stricter limits for free tier
     if not request.message.strip():
         raise HTTPException(status_code=400, detail="Message cannot be empty")
     
-    if len(request.message) > 1000:
-        raise HTTPException(status_code=400, detail="Message too long (max 1000 characters)")
+    if len(request.message) > 500:  # Reduced limit for HF Spaces
+        raise HTTPException(status_code=400, detail="Message too long (max 500 characters)")
     
     # Generate response
     response_text, response_time = generate_response(