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

# ![Crusoe logo](https://models.dev/logos/crusoe.svg)Crusoe

Access 8 Crusoe models through Mastra's model router. Authentication is handled automatically using the `CRUSOE_API_KEY` environment variable.

Learn more in the [Crusoe documentation](https://docs.crusoecloud.com/managed-inference/overview).

```bash
CRUSOE_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: "crusoe/deepseek-ai/DeepSeek-V3-0324"
});

// 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);
}
```

> **Note:** Mastra uses the OpenAI-compatible `/chat/completions` endpoint. Some provider-specific features may not be available. Check the [Crusoe documentation](https://docs.crusoecloud.com/managed-inference/overview) for details.

## Models

| Model                                                  | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ------------------------------------------------------ | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `crusoe/deepseek-ai/DeepSeek-V3-0324`                  | 164K    |       |           |       |       |       | $0.50      | $2          |
| `crusoe/google/gemma-4-31b-it`                         | 262K    |       |           |       |       |       | $0.14      | $0.40       |
| `crusoe/meta-llama/Llama-3.3-70B-Instruct`             | 128K    |       |           |       |       |       | $0.25      | $0.75       |
| `crusoe/moonshotai/Kimi-K2.6`                          | 262K    |       |           |       |       |       | $0.70      | $4          |
| `crusoe/nvidia/Nemotron-3-Nano-Omni-Reasoning-30B-A3B` | 256K    |       |           |       |       |       | $0.30      | $2          |
| `crusoe/openai/gpt-oss-120b`                           | 131K    |       |           |       |       |       | $0.05      | $0.20       |
| `crusoe/zai/GLM-5.1`                                   | 200K    |       |           |       |       |       | $1         | $4          |
| `crusoe/zai/GLM-5.2`                                   | 1.0M    |       |           |       |       |       | $1         | $4          |

## Advanced configuration

### Custom headers

```typescript
const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://api.inference.crusoecloud.com/v1",
    id: "crusoe/deepseek-ai/DeepSeek-V3-0324",
    apiKey: process.env.CRUSOE_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
      ? "crusoe/zai/GLM-5.2"
      : "crusoe/deepseek-ai/DeepSeek-V3-0324";
  }
});
```