# LongCat\-Flash Chat model is now supported in Vercel AI Gateway

**Published:** September 11, 2025 | **Authors:** Walter Korman, Rohan Taneja, Harpreet Arora

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You can now access LongCat Flash Chat, a new model from Meituan focused on agentic tool use, using Vercel [AI Gateway](https://vercel.com/ai-gateway) with no other provider accounts required. The model dynamically activates parameters, based on contextual demands.

AI Gateway lets you call the model with a consistent unified API and just a single string update, track usage and cost, and configure performance optimizations, retries, and failover for higher than provider-average uptime.

To use it with the [AI SDK v5]( https://ai-sdk.dev/docs/introduction), start by installing the package:

```bash
pnpm i ai
```

Then set the model to `meituan/longcat-flash-chat`:

```tsx
import { streamText } from 'ai'
const result = streamText({
  model: 'meituan/longcat-flash-chat',
  prompt: 'How does dynamic parameter activation work for AI models?'
})
```

Includes built-in [observability](https://vercel.com/docs/ai-gateway/observability), [Bring Your Own Key support](https://vercel.com/docs/ai-gateway#configuring-your-own-provider-keys-byok), and intelligent [provider routing](https://vercel.com/docs/ai-gateway/provider-options) with automatic retries.

Learn more about [AI Gateway](https://vercel.com/ai-gateway) and access the model [here](https://vercel.com/ai-gateway/models/longcat-flash-chat).

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📚 **More updates:** [View all changelog entries](/changelog/sitemap.md) | [Blog](/blog/sitemap.md)