app.py

import gradio as gr

DESCRIPTION = """
# Puter.js vs NexaAPI: The Honest Comparison

Puter.js is great for browser demos. NexaAPI works everywhere — Python, Node.js, serverless, mobile.

## Feature Comparison

| Feature | Puter.js | NexaAPI |
|---------|----------|---------|
| Backend support (Python/Node.js) | ❌ | ✅ |
| Real API key | ❌ | ✅ |
| CLI/script usage | ❌ | ✅ |
| Number of models | ~6 | 56+ |
| Video generation | ❌ | ✅ |
| Audio/TTS | ❌ | ✅ |
| SLA/uptime guarantee | ❌ | ✅ |
| Transparent pricing | ❌ | ✅ ($0.003/image) |
| Free tier | ✅ | ✅ |

## Quick Migration (Python)

```python
# pip install nexaapi
from nexaapi import NexaAPI

client = NexaAPI(api_key='YOUR_API_KEY')

# Same Flux model as Puter.js — but works in Python!
result = client.image.generate(
    model='flux',
    prompt='A futuristic cityscape at golden hour',
    width=1024,
    height=1024
)
print(f'Image URL: {result.image_url}')
```

## Links
- 🌐 [NexaAPI Website](https://nexa-api.com)
- 🚀 [RapidAPI Hub](https://rapidapi.com/user/nexaquency)
- 🐍 [PyPI: pip install nexaapi](https://pypi.org/project/nexaapi)
- 📦 [npm: npm install nexaapi](https://npmjs.com/package/nexaapi)
- 💻 [GitHub Migration Guide](https://github.com/diwushennian4955/puter-js-alternative-nexaapi)
- 📖 [Full Blog Post](https://nexa-api.com/blog/puter-js-alternative-nexaapi)

*Reference: [developer.puter.com/tutorials/free-unlimited-image-generation-api/](https://developer.puter.com/tutorials/free-unlimited-image-generation-api/)*
"""

def show_comparison(scenario):
    scenarios = {
        "Python Backend": "Puter.js: ❌ Cannot use in Python\nNexaAPI: ✅ pip install nexaapi — works anywhere",
        "Node.js Server": "Puter.js: ❌ Browser-only, no server support\nNexaAPI: ✅ Works in Express, Next.js, Fastify, Lambda",
        "Video Generation": "Puter.js: ❌ Images only\nNexaAPI: ✅ Kling, Sora alternatives available",
        "Audio/TTS": "Puter.js: ❌ Not supported\nNexaAPI: ✅ ElevenLabs-quality TTS available",
        "Commercial Use": "Puter.js: ⚠️ Terms unclear\nNexaAPI: ✅ Clear commercial terms",
        "Pricing": "Puter.js: $0 (browser-only)\nNexaAPI: $0.003/image (works everywhere)",
    }
    return scenarios.get(scenario, "Select a scenario")

with gr.Blocks(title="Puter.js vs NexaAPI") as demo:
    gr.Markdown(DESCRIPTION)
    
    with gr.Row():
        scenario = gr.Dropdown(
            choices=["Python Backend", "Node.js Server", "Video Generation", "Audio/TTS", "Commercial Use", "Pricing"],
            label="Compare a specific scenario",
            value="Python Backend"
        )
    
    output = gr.Textbox(label="Comparison Result", lines=3)
    scenario.change(show_comparison, inputs=scenario, outputs=output)
    demo.load(lambda: show_comparison("Python Backend"), outputs=output)

demo.launch()