# GPT 5.6 Sol (Fast)

GPT-5.6 Sol is the flagship of OpenAI's GPT-5.6 series, its most capable model for long-horizon agentic work across coding, biology, and cybersecurity.

- **Model ID:** `openai/gpt-5.6-sol-fast`
- **Type:** chat
- **Providers:** openai
- **Context window:** 1,050,000
- **Maximum output tokens:** 128,000
- **Pricing:** $8/1M input tokens, $40/1M output tokens
- **Canonical page:** https://vercel.com/ai-gateway/models/gpt-5.6-sol-fast

## Supported parameters

Detailed capability metadata has not been reported for this model.

## Example

```ts
import { streamText } from 'ai'

const result = streamText({
  model: 'openai/gpt-5.6-sol-fast',
  prompt: 'Why is the sky blue?'
})
```

## Links

- [Model page](https://vercel.com/ai-gateway/models/gpt-5.6-sol-fast)
- [AI Gateway documentation](https://vercel.com/docs/ai-gateway)
- [Provider model documentation](https://developers.openai.com/api/docs/models/gpt-5.6-sol)