> ## Documentation Index
> Fetch the complete documentation index at: https://opentouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Vercel AI SDK

> Using OpenRouter with Vercel AI SDK

export const API_KEY_REF = '<OPENROUTER_API_KEY>';

## Vercel AI SDK

You can use the [Vercel AI SDK](https://www.npmjs.com/package/ai) to integrate OpenRouter with your Next.js app. To get started, install [@openrouter/ai-sdk-provider](https://github.com/OpenRouterTeam/ai-sdk-provider):

```bash lines theme={null}
npm install @openrouter/ai-sdk-provider
```

And then you can use [streamText()](https://sdk.vercel.ai/docs/reference/ai-sdk-core/stream-text) API to stream text from OpenRouter.

<CodeGroup>
  ```typescript title="TypeScript" expandable lines theme={null}
  import { createOpenRouter } from '@openrouter/ai-sdk-provider';
  import { streamText } from 'ai';
  import { z } from 'zod';

  export const getLasagnaRecipe = async (modelName: string) => {
    const openrouter = createOpenRouter({
      apiKey: '<OPENROUTER_API_KEY>',
    });

    const response = streamText({
      model: openrouter(modelName),
      prompt: 'Write a vegetarian lasagna recipe for 4 people.',
    });

    await response.consumeStream();
    return response.text;
  };

  export const getWeather = async (modelName: string) => {
    const openrouter = createOpenRouter({
      apiKey: '<OPENROUTER_API_KEY>',
    });

    const response = streamText({
      model: openrouter(modelName),
      prompt: 'What is the weather in San Francisco, CA in Fahrenheit?',
      tools: {
        getCurrentWeather: {
          description: 'Get the current weather in a given location',
          parameters: z.object({
            location: z
              .string()
              .describe('The city and state, e.g. San Francisco, CA'),
            unit: z.enum(['celsius', 'fahrenheit']).optional(),
          }),
          execute: async ({ location, unit = 'celsius' }) => {
            // Mock response for the weather
            const weatherData = {
              'Boston, MA': {
                celsius: '15°C',
                fahrenheit: '59°F',
              },
              'San Francisco, CA': {
                celsius: '18°C',
                fahrenheit: '64°F',
              },
            };

            const weather = weatherData[location];
            if (!weather) {
              return `Weather data for ${location} is not available.`;
            }

            return `The current weather in ${location} is ${weather[unit]}.`;
          },
        },
      },
    });

    await response.consumeStream();
    return response.text;
  };
  ```
</CodeGroup>

## Video Generation

OpenRouter supports [video generation](/guides/overview/multimodal/video-generation) through the AI SDK's [`experimental_generateVideo`](https://sdk.vercel.ai/docs/reference/ai-sdk-core/generate-video) API. The provider handles the asynchronous submit-poll-download workflow automatically.

<CodeGroup>
  ```typescript title="TypeScript" lines theme={null}
  import { createOpenRouter } from '@openrouter/ai-sdk-provider';
  import { experimental_generateVideo as generateVideo } from 'ai';

  const openrouter = createOpenRouter({
    apiKey: '<OPENROUTER_API_KEY>',
  });

  const { video } = await generateVideo({
    model: openrouter.videoModel('google/veo-3.1'),
    prompt: 'A golden retriever playing fetch on a sunny beach with waves crashing in the background',
    aspectRatio: '16:9',
    duration: 4,
  });

  console.log(video.mediaType); // 'video/mp4'
  console.log(video.uint8Array.byteLength); // video size in bytes
  ```
</CodeGroup>

### Passthrough Options

Each video model supports model-specific parameters that can be passed through via `provider.options` in `extraBody`, keyed by provider slug. See the [video generation docs](/guides/overview/multimodal/video-generation#via-the-video-models-api) for the full list of `allowed_passthrough_parameters` per model.

<CodeGroup>
  ```typescript title="TypeScript (Veo 3.1)" expandable lines theme={null}
  import { createOpenRouter } from '@openrouter/ai-sdk-provider';
  import { experimental_generateVideo as generateVideo } from 'ai';

  const openrouter = createOpenRouter({
    apiKey: '<OPENROUTER_API_KEY>',
  });

  const { video } = await generateVideo({
    model: openrouter.videoModel('google/veo-3.1', {
      generateAudio: true,
      extraBody: {
        provider: {
          options: {
            'google-vertex': {
              parameters: {
                personGeneration: 'allow_all',
                enhancePrompt: true,
              },
            },
          },
        },
      },
    }),
    prompt: 'A timelapse of a flower blooming in a sunlit garden',
    aspectRatio: '16:9',
  });
  ```

  ```typescript title="TypeScript (Wan 2.7)" expandable lines theme={null}
  import { createOpenRouter } from '@openrouter/ai-sdk-provider';
  import { experimental_generateVideo as generateVideo } from 'ai';

  const openrouter = createOpenRouter({
    apiKey: '<OPENROUTER_API_KEY>',
  });

  const { video } = await generateVideo({
    model: openrouter.videoModel('alibaba/wan-2.7', {
      extraBody: {
        provider: {
          options: {
            'atlas-cloud': {
              negative_prompt: 'blurry, low quality, distorted, watermark',
            },
          },
        },
      },
    }),
    prompt: 'A character walking through a forest',
    aspectRatio: '16:9',
    duration: 4,
  });
  ```
</CodeGroup>

### Video Model Settings

| Setting          | Type    | Default  | Description                                                      |
| ---------------- | ------- | -------- | ---------------------------------------------------------------- |
| `generateAudio`  | boolean | `false`  | Whether to generate audio alongside the video                    |
| `pollIntervalMs` | number  | `2000`   | Polling interval in milliseconds when waiting for generation     |
| `maxPollTimeMs`  | number  | `600000` | Maximum time in milliseconds to wait before timing out           |
| `extraBody`      | object  | —        | Default body parameters merged into every request for this model |

### Image-to-Video

You can pass a reference image to guide the video generation:

<CodeGroup>
  ```typescript title="TypeScript" lines theme={null}
  import { createOpenRouter } from '@openrouter/ai-sdk-provider';
  import { experimental_generateVideo as generateVideo } from 'ai';

  const openrouter = createOpenRouter({
    apiKey: '<OPENROUTER_API_KEY>',
  });

  const { video } = await generateVideo({
    model: openrouter.videoModel('alibaba/wan-2.7'),
    prompt: 'A character walking through a forest',
    image: new URL('https://example.com/first-frame.png'),
    resolution: '1920x1080',
  });
  ```
</CodeGroup>

### Provider Metadata

The response includes OpenRouter-specific metadata accessible via `providerMetadata`:

<CodeGroup>
  ```typescript title="TypeScript" lines theme={null}
  import { createOpenRouter } from '@openrouter/ai-sdk-provider';
  import { experimental_generateVideo as generateVideo } from 'ai';

  const openrouter = createOpenRouter({
    apiKey: '<OPENROUTER_API_KEY>',
  });

  const result = await generateVideo({
    model: openrouter.videoModel('google/veo-3.1'),
    prompt: 'A slow pan across a calm mountain lake at sunrise',
    aspectRatio: '16:9',
  });

  console.log(result.providerMetadata?.openrouter);
  // { generationId: 'gen-...', cost: 0.25 }
  ```
</CodeGroup>

For the full list of supported models, resolutions, aspect ratios, and provider-specific options, see the [Video Generation documentation](/guides/overview/multimodal/video-generation).