app.py

import gradio as gr
import requests

API_URL = "https://api-inference.huggingface.co/models/tiiuae/falcon-7b-instruct"
headers = {"Authorization": "Bearer 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"}

API_URL2 = "https://api-inference.huggingface.co/models/valhalla/longformer-base-4096-finetuned-squadv1"
headers2 = {"Authorization": "Bearer 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"}

model_1_interface = gr.Interface(
    fn=lambda question, context="": query(question, context, API_URL, headers),
    inputs=[gr.Textbox("question"), gr.Textbox("context")],
    outputs=gr.Textbox("answer"),
    title="Model 1 Interface",
    description="Ask the AI model anything!",
)

model_2_interface = gr.Interface(
    fn=lambda question, context="": query(question, context, API_URL2, headers2),
    inputs=[gr.Textbox("question"), gr.Textbox("context")],
    outputs=gr.Textbox("answer"),
    title="Model 2 Interface",
    description="Ask the AI model anything!",
)

def query(question, context, api_url, headers):
    if api_url = API_URL:
      payload = {"question": question, "context": context}
    else:
      paylaod = {"question": "what is the context of the question: "+question+" :"}
    response = requests.post(api_url, headers=headers, json=payload)
    return response.json()["answer"]

def switch_model():
    if gr.Interface.get_active() == model_1_interface:
        model_2_interface.launch()
    else:
        model_1_interface.launch()

model_1_interface.launch()