app.py

import gradio as gr
from huggingface_hub import InferenceClient

client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")

def respond(message, history):
    
    messages = [{"role": "system", "content": "You are a friendly chatbot."}]
    
    if history:
        messages.extend(history)
        
    messages.append({"role": "user", "content": message})

    response = ""
    
    for message in client.chat_completion(
        messages,
        max_tokens=100,
        stream=True
    ):
        token = message['choices'][0]['delta']['content']

        response += token
        yield response

chatbot = gr.ChatInterface(respond, type="messages")

chatbot.launch()