> Discover all available pages from the documentation index: https://mastra.ai/llms.txt

# ![routing.run logo](https://models.dev/logos/routing-run.svg)routing.run

Access 15 routing.run models through Mastra's model router. Authentication is handled automatically using the `ROUTING_RUN_API_KEY` environment variable.

Learn more in the [routing.run documentation](https://docs.routing.run).

```bash
ROUTING_RUN_API_KEY=your-api-key
```

```typescript
import { Agent } from "@mastra/core/agent";

const agent = new Agent({
  id: "my-agent",
  name: "My Agent",
  instructions: "You are a helpful assistant",
  model: "routing-run/claude-opus-4-8"
});

// Generate a response
const response = await agent.generate("Hello!");

// Stream a response
const stream = await agent.stream("Tell me a story");
for await (const chunk of stream) {
  console.log(chunk);
}
```

> **Info:** Mastra uses the OpenAI-compatible `/chat/completions` endpoint. Some provider-specific features may not be available. Check the [routing.run documentation](https://docs.routing.run) for details.

## Models

| Model                              | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ---------------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `routing-run/claude-opus-4-8`      | 1.0M    |       |           |       |       |       | $5         | $25         |
| `routing-run/claude-sonnet-4-6`    | 1.0M    |       |           |       |       |       | $3         | $15         |
| `routing-run/deepseek-v4-flash`    | 1.0M    |       |           |       |       |       | $0.11      | $0.22       |
| `routing-run/deepseek-v4-pro`      | 1.0M    |       |           |       |       |       | $0.35      | $0.70       |
| `routing-run/glm-5.2`              | 200K    |       |           |       |       |       | $0.80      | $2          |
| `routing-run/glm-5.2-nitro`        | 200K    |       |           |       |       |       | $0.80      | $2          |
| `routing-run/gpt-5.6-luna`         | 1.0M    |       |           |       |       |       | $0.70      | $4          |
| `routing-run/gpt-5.6-sol`          | 1.0M    |       |           |       |       |       | $3         | $15         |
| `routing-run/gpt-5.6-terra`        | 1.0M    |       |           |       |       |       | $2         | $9          |
| `routing-run/kimi-k2.6`            | 200K    |       |           |       |       |       | $0.28      | $1          |
| `routing-run/kimi-k2.6-nitro`      | 200K    |       |           |       |       |       | $0.28      | $1          |
| `routing-run/kimi-k2.7-code`       | 200K    |       |           |       |       |       | $0.28      | $1          |
| `routing-run/kimi-k2.7-code-nitro` | 200K    |       |           |       |       |       | $0.28      | $1          |
| `routing-run/nemotron-3-ultra`     | 131K    |       |           |       |       |       | $0.10      | $0.10       |
| `routing-run/qwen3.5-9b`           | 262K    |       |           |       |       |       | $0.16      | $0.48       |

## Advanced configuration

### Custom headers

```typescript
const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://api.routing.run/v1",
    id: "routing-run/claude-opus-4-8",
    apiKey: process.env.ROUTING_RUN_API_KEY,
    headers: {
      "X-Custom-Header": "value"
    }
  }
});
```

### Dynamic model selection

```typescript
const agent = new Agent({
  id: "dynamic-agent",
  name: "Dynamic Agent",
  model: ({ requestContext }) => {
    const useAdvanced = requestContext.task === "complex";
    return useAdvanced
      ? "routing-run/qwen3.5-9b"
      : "routing-run/claude-opus-4-8";
  }
});
```