app.py

from huggingface_hub import InferenceClient

import gradio as gr
import random

client=InferenceClient("Qwen/Qwen2.5-72B-Instruct")

def respond(message, history):
    #responses = ["Yes", "No"]
    #return random.choice(responses)

    messages = [
        {"role": "system",
        "content": "You are a friendly chatbot! :)"
        }
    ]
    
    if history:
        messages.extend(history)

    messages.append(
        {"role": "user",
        "content": message}
    )
    
    response = client.chat_completion(
        messages, max_tokens=100, temperature=1.3, top_p=.2
    )
    #temperature and top_p control randomness
    
    return response['choices'][0]['message']['content'].strip()
    
chatbot = gr.ChatInterface(respond, type="messages")
chatbot.launch()