app.py

import gradio as gr 
# import random 
from huggingface_hub import InferenceClient

client = InferenceClient ("microsoft/phi-4") #this is the pre-trained model so we don't have to start from scratch

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 = client.chat_completion(
        messages, 
        max_tokens = 200
    )
    return response['choices'][0]['message']['content'].strip()


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

chatbot.launch()