# GPT 5.5 (gpt-5-5)

Vendor: OpenAI
Model ID: `gpt-5-5`
Base URL: `https://api.mulerouter.ai`
Type: Chat / LLM (OpenAI-compatible)

## Description
OpenAI's latest flagship LLM with 1M+ context window, tiered pricing, and cached input support via chat completions and responses endpoints

## Usage (OpenAI Compatible API)

### Python
```python
from openai import OpenAI

client = OpenAI(
    api_key="<YOUR_MULEROUTER_API_KEY>",
    base_url="https://api.mulerouter.ai/vendors/openai/v1"
)

response = client.chat.completions.create(
    model="gpt-5-5",
    messages=[
        {"role": "user", "content": "Hello, how are you?"}
    ]
)

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

### Node.js / TypeScript
```typescript
import OpenAI from "openai";

const openai = new OpenAI({
    apiKey: "<YOUR_MULEROUTER_API_KEY>",
    baseURL: "https://api.mulerouter.ai/vendors/openai/v1"
});

async function main() {
    const response = await openai.chat.completions.create({
        model: "gpt-5-5",
        messages: [{ role: "user", content: "Hello, how are you?" }]
    });

    console.log(response.choices[0].message.content);
}
main();
```

### cURL
```bash
curl -X POST https://api.mulerouter.ai/vendors/openai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <YOUR_MULEROUTER_API_KEY>" \
  -d '{
    "model": "gpt-5-5",
    "messages": [{"role": "user", "content": "Hello, how are you?"}]
  }'
```

## Additional Resources

### Documentation

- [Model Playground](https://www.mulerouter.ai/models/gpt-5-5)
- [API Documentation](https://mulerouter.ai/docs/api-reference/endpoint/openai/chat)

### MuleRouter Platform

- [Platform Documentation](https://www.mulerouter.ai/docs)
- [API Keys Management](https://www.mulerouter.ai/app/api-keys)