# GPT 5\.1 models now available in Vercel AI Gateway

**Published:** November 13, 2025 | **Authors:** Rohan Taneja, Walter Korman, Jerilyn Zheng

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You can now access OpenAI's latest models, GPT-5.1 Instant and GPT-5.1 Thinking, using Vercel's [AI Gateway](https://vercel.com/ai-gateway) with no other provider accounts required.

- GPT-5.1 Instant offers improved instruction following, adaptive reasoning, and warmer, more conversational responses.
- GPT-5.1 Thinking builds on GPT-5 Thinking with dynamic performance tuning that prioritizes speed for simple tasks and deeper reasoning for complex ones.

To use these models with the [AI SDK](https://ai-sdk.dev/), set the model to `openai/gpt-5.1-instant` or `openai/gpt-5.1-thinking`:

```tsx
import { streamText } from 'ai'
const result = streamText({
  model: "openai/gpt-5.1-instant",
  prompt: "What are the benefits to adaptive reasoning?" 
})
```

AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in [observability](https://vercel.com/docs/ai-gateway/observability), [Bring Your Own Key support](https://vercel.com/docs/ai-gateway/byok), and intelligent [provider routing](https://vercel.com/docs/ai-gateway/provider-options) with automatic retries.

Learn more about [AI Gateway](https://vercel.com/docs/ai-gateway), view the [AI Gateway model leaderboard](https://vercel.com/ai-gateway/leaderboards) or try it in our [model playground](https://vercel.com/ai-gateway/models/gpt-5.1-instant).

**AI Gateway: Track top AI models by usage**
The AI Gateway model leaderboard tracks the most popular models over time, ranking them by the total volume of tokens processed across all Gateway traffic.
[View the leaderboard](https://vercel.com/ai-gateway/leaderboards)

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