Update app.py

app.py

@@ -48,6 +48,11 @@ TOOLS_DB.parent.mkdir(exist_ok=True)
 
 # Hugging Face Model
 model_name = "gpt2"  # Use GPT-2 model for text generation
+# Hugging Face Model
+model_name = "gpt2"  # Ensure the model name is correct
+if model_name is None:
+    raise ValueError("Model name is not specified. Please provide a valid model name.")
+
 tokenizer = GPT2Tokenizer.from_pretrained(model_name)
 generator = pipeline("text-generation", model=model_name, tokenizer=tokenizer, device=-1)  # Use CPU