Chutes

Access 13 Chutes models through Mastra's model router. Authentication is handled automatically using the CHUTES_API_KEY environment variable.

Learn more in the Chutes documentation.

.env

CHUTES_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: "chutes/MiniMaxAI/MiniMax-M2.5-TEE"
});

// 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 Chutes documentation for details.

Models

13 available models

Model	Context	Tools	Reasoning	Image	Audio	Video	Input $/1M	Output $/1M
chutes/deepseek-ai/DeepSeek-V3.2-TEE	131K						$1	$1
chutes/google/gemma-4-31B-turbo-TEE	131K						$0.12	$0.37
chutes/MiniMaxAI/MiniMax-M2.5-TEE	197K						$0.15	$1
chutes/moonshotai/Kimi-K2.5-TEE	262K						$0.44	$2
chutes/moonshotai/Kimi-K2.6-TEE	262K						$0.66	$4
chutes/Qwen/Qwen3-235B-A22B-Thinking-2507-TEE	262K						$0.30	$1
chutes/Qwen/Qwen3-32B-TEE	41K						$0.10	$0.42
chutes/Qwen/Qwen3.5-397B-A17B-TEE	262K						$0.45	$3
chutes/Qwen/Qwen3.6-27B-TEE	262K						$0.30	$2
chutes/unsloth/Mistral-Nemo-Instruct-2407-TEE	131K						$0.02	$0.10
chutes/zai-org/GLM-5-TEE	203K						$0.95	$3
chutes/zai-org/GLM-5.1-TEE	203K						$0.98	$3
chutes/zai-org/GLM-5.2-TEE	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://llm.chutes.ai/v1",
    id: "chutes/MiniMaxAI/MiniMax-M2.5-TEE",
    apiKey: process.env.CHUTES_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
      ? "chutes/zai-org/GLM-5.2-TEE"
      : "chutes/MiniMaxAI/MiniMax-M2.5-TEE";
  }
});