# DeepSeek V4.1 Flash Fast

Higher-throughput variant of DeepSeek V4.1 Flash for responsive coding, reasoning, and agentic workloads.

- **Model ID:** `deepseek/deepseek-v4.1-flash-fast`
- **Type:** chat
- **Providers:** baseten
- **Context window:** 1,048,576
- **Maximum output tokens:** 32,768
- **Pricing:** $0.6/1M input tokens, $2.4/1M output tokens
- **Canonical page:** https://vercel.com/ai-gateway/models/deepseek-v4.1-flash-fast

## Supported parameters

Detailed capability metadata has not been reported for this model.

## Example

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

const result = streamText({
  model: 'deepseek/deepseek-v4.1-flash-fast',
  prompt: 'Why is the sky blue?'
})
```

## Links

- [Model page](https://vercel.com/ai-gateway/models/deepseek-v4.1-flash-fast)
- [AI Gateway documentation](https://vercel.com/docs/ai-gateway)
- [Provider model documentation](https://www.baseten.co/library/deepseek-v41-flash-fast/)
- [Provider pricing](https://www.baseten.co/library/deepseek-v41-flash-fast/)