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.

.env

CRUSOE_API_KEY=your-api-key

src/mastra/agents/my-agent.ts

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 for details.

Models

8 available 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

src/mastra/agents/my-agent.ts

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

src/mastra/agents/my-agent.ts

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";
  }
});