# <img src="https://models.dev/logos/cerebras.svg" alt="Cerebras logo" className="inline w-8 h-8 mr-2 align-middle dark:invert dark:brightness-0 dark:contrast-200" />Cerebras
[EN] Source: https://mastra.ai/models/providers/cerebras

Access 3 Cerebras models through Mastra's model router. Authentication is handled automatically using the `CEREBRAS_API_KEY` environment variable.

Learn more in the [Cerebras documentation](https://inference-docs.cerebras.ai/models/overview).

```bash
CEREBRAS_API_KEY=your-api-key
```

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

const agent = new Agent({
  name: "my-agent",
  instructions: "You are a helpful assistant",
  model: "cerebras/gpt-oss-120b"
});

// 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 [Cerebras documentation](https://inference-docs.cerebras.ai/models/overview) for details.

:::

## Models

<ProviderModelsTable
  models={[
  {
    "model": "cerebras/gpt-oss-120b",
    "imageInput": false,
    "audioInput": false,
    "videoInput": false,
    "toolUsage": true,
    "reasoning": true,
    "contextWindow": 131072,
    "maxOutput": 32768,
    "inputCost": 0.25,
    "outputCost": 0.69
  },
  {
    "model": "cerebras/qwen-3-235b-a22b-instruct-2507",
    "imageInput": false,
    "audioInput": false,
    "videoInput": false,
    "toolUsage": true,
    "reasoning": false,
    "contextWindow": 131000,
    "maxOutput": 32000,
    "inputCost": 0.6,
    "outputCost": 1.2
  },
  {
    "model": "cerebras/qwen-3-coder-480b",
    "imageInput": false,
    "audioInput": false,
    "videoInput": false,
    "toolUsage": true,
    "reasoning": false,
    "contextWindow": 131000,
    "maxOutput": 32000,
    "inputCost": 2,
    "outputCost": 2
  },
  {
    "model": "cerebras/zai-glm-4.6",
    "imageInput": false,
    "audioInput": false,
    "videoInput": false,
    "toolUsage": true,
    "reasoning": false,
    "contextWindow": 131072,
    "maxOutput": 40960,
    "inputCost": null,
    "outputCost": null
  }
]}
/>

## Advanced Configuration

### Custom Headers

```typescript
const agent = new Agent({
  name: "custom-agent",
  model: {
    url: "https://api.cerebras.ai/v1",
    id: "cerebras/gpt-oss-120b",
    apiKey: process.env.CEREBRAS_API_KEY,
    headers: {
      "X-Custom-Header": "value"
    }
  }
});
```

### Dynamic Model Selection

```typescript
const agent = new Agent({
  name: "dynamic-agent",
  model: ({ runtimeContext }) => {
    const useAdvanced = runtimeContext.task === "complex";
    return useAdvanced
      ? "cerebras/qwen-3-coder-480b"
      : "cerebras/gpt-oss-120b";
  }
});
```



## Direct Provider Installation

This provider can also be installed directly as a standalone package, which can be used instead of the Mastra model router string. View the [package documentation](https://www.npmjs.com/package/@ai-sdk/cerebras) for more details.

```bash npm2yarn copy
npm install @ai-sdk/cerebras
```

For detailed provider-specific documentation, see the [AI SDK Cerebras provider docs](https://ai-sdk.dev/providers/ai-sdk-providers/cerebras).


---
title: "Chutes | Models | Mastra"
description: "Use Chutes models with Mastra. 33 models available."
---

{/* This file is auto-generated by generate-model-docs.ts - DO NOT EDIT MANUALLY */}