Update chat.py

chat.py

@@ -48,7 +48,11 @@ def generate_response(message, history):
         response = tokenizer.decode(output[0], skip_special_tokens=True)
         
         # Extract only the assistant's response
-        assistant_response = response.split("<|im_start|>assistant\n")[1].split("<|im_end|>")[0]
+        if "<|im_start|>assistant\n" in response and "<|im_end|>" in response:
+            assistant_response = response.split("<|im_start|>assistant\n")[1].split("<|im_end|>")[0]
+        else:
+            # Fallback: Return the entire generated response if special tokens are not found
+            assistant_response = response
         
         return assistant_response
     except Exception as e: