Update app.py

app.py

@@ -4,7 +4,7 @@ from langchain.chains import ConversationChain
 from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline
 
 # Load pre-trained model and tokenizer from Hugging Face
-model_name = "microsoft/DialoGPT-medium"  # You can replace this with other conversational models
+model_name = "HuggingFaceH4/zephyr-7b-beta"  # You can replace this with other conversational models
 tokenizer = AutoTokenizer.from_pretrained(model_name)
 model = AutoModelForCausalLM.from_pretrained(model_name)