# OpenRouter (/docs/providers/openrouter)


Overview [#overview]

[OpenRouter](https://openrouter.ai) is a unified API gateway that aggregates multiple AI model providers into a single interface with features like price comparison, automatic fallback, and provider selection.

**Official Website:** [https://openrouter.ai](https://openrouter.ai)
**API Documentation:** [https://openrouter.ai/docs](https://openrouter.ai/docs)

Key Features [#key-features]

* **Model Marketplace** — Access 100+ models from various providers
* **Price Comparison** — Find the best price for your needs
* **Automatic Fallback** — Route to alternatives if a provider is down
* **One API Key** — Unified access to all providers

Usage Example [#usage-example]

```python
from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.yuhuanstudio.com/v1"
)

response = client.chat.completions.create(
    model="model-id",
    messages=[{"role": "user", "content": "Hello!"}]
)

print(response.choices[0].message.content)
```

Available Models [#available-models]

Use the [Models API](/docs/models-api) to query available models:

```bash
curl https://api.yuhuanstudio.com/v1/models?provider=openrouter \
  -H "Authorization: Bearer YOUR_API_KEY"
```

<Callout type="info">
  Models and pricing are synced automatically. Check the dashboard for current availability and rates.
</Callout>

Official Resources [#official-resources]

* [OpenRouter](https://openrouter.ai)
* [Documentation](https://openrouter.ai/docs)
* [Models](https://openrouter.ai/models)