app.py

import gradio as gr
import requests
import json
import os

# Retrieve the OpenRouter API Key from the Space secrets
API_KEY = os.getenv("OpenRouter_API_KEY")

# Define available models for selection
MODEL_OPTIONS = [
    "openai/gpt-4o-mini-2024-07-18",
    "openai/gpt-4",
    "anthropic/claude-2",
    "cohere/command-xlarge-nightly"
]

def generate_comparisons(input_text, selected_models):
    results = {}
    for model in selected_models:
        response = requests.post(
            url="https://openrouter.ai/api/v1/chat/completions",
            headers={
                "Authorization": f"Bearer {API_KEY}",
                "Content-Type": "application/json"
            },
            data=json.dumps({
                "model": model,  # Use the current model
                "messages": [{"role": "user", "content": input_text}],
                "top_p": 1,
                "temperature": 1,
                "frequency_penalty": 0,
                "presence_penalty": 0,
                "repetition_penalty": 1,
                "top_k": 0,
            })
        )
        
        # Parse the response
        if response.status_code == 200:
            try:
                response_json = response.json()
                results[model] = response_json.get("choices", [{}])[0].get("message", {}).get("content", "No content returned.")
            except json.JSONDecodeError:
                results[model] = "Error: Unable to parse response."
        else:
            results[model] = f"Error: {response.status_code}, {response.text}"
    
    return results

# Create Gradio interface with multiple model selection
iface = gr.Interface(
    fn=generate_comparisons,
    inputs=[
        gr.Textbox(lines=2, label="Input Text", placeholder="Enter your query here"),
        gr.CheckboxGroup(choices=MODEL_OPTIONS, label="Select Models", value=[MODEL_OPTIONS[0]])
    ],
    outputs=gr.JSON(label="Model Comparisons"),
    title="Compare Outputs from Multiple Models"
)

iface.launch()