# ![GitHub Models logo](https://models.dev/logos/github-models.svg)GitHub Models

Access 55 GitHub Models models through Mastra's model router. Authentication is handled automatically using the `GITHUB_TOKEN` environment variable.

Learn more in the [GitHub Models documentation](https://docs.github.com/en/github-models).

```bash
GITHUB_TOKEN=your-api-token
```

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

const agent = new Agent({
  id: "my-agent",
  name: "My Agent",
  instructions: "You are a helpful assistant",
  model: "github-models/ai21-labs/ai21-jamba-1.5-large"
});

// 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 [GitHub Models documentation](https://docs.github.com/en/github-models) for details.

## Models

| Model                                                       | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ----------------------------------------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `github-models/ai21-labs/ai21-jamba-1.5-large`              | 256K    |       |           |       |       |       | —          | —           |
| `github-models/ai21-labs/ai21-jamba-1.5-mini`               | 256K    |       |           |       |       |       | —          | —           |
| `github-models/cohere/cohere-command-a`                     | 128K    |       |           |       |       |       | —          | —           |
| `github-models/cohere/cohere-command-r`                     | 128K    |       |           |       |       |       | —          | —           |
| `github-models/cohere/cohere-command-r-08-2024`             | 128K    |       |           |       |       |       | —          | —           |
| `github-models/cohere/cohere-command-r-plus`                | 128K    |       |           |       |       |       | —          | —           |
| `github-models/cohere/cohere-command-r-plus-08-2024`        | 128K    |       |           |       |       |       | —          | —           |
| `github-models/core42/jais-30b-chat`                        | 8K      |       |           |       |       |       | —          | —           |
| `github-models/deepseek/deepseek-r1`                        | 66K     |       |           |       |       |       | —          | —           |
| `github-models/deepseek/deepseek-r1-0528`                   | 66K     |       |           |       |       |       | —          | —           |
| `github-models/deepseek/deepseek-v3-0324`                   | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/llama-3.2-11b-vision-instruct`          | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/llama-3.2-90b-vision-instruct`          | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/llama-3.3-70b-instruct`                 | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/llama-4-maverick-17b-128e-instruct-fp8` | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/llama-4-scout-17b-16e-instruct`         | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/meta-llama-3-70b-instruct`              | 8K      |       |           |       |       |       | —          | —           |
| `github-models/meta/meta-llama-3-8b-instruct`               | 8K      |       |           |       |       |       | —          | —           |
| `github-models/meta/meta-llama-3.1-405b-instruct`           | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/meta-llama-3.1-70b-instruct`            | 128K    |       |           |       |       |       | —          | —           |
| `github-models/meta/meta-llama-3.1-8b-instruct`             | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/mai-ds-r1`                         | 66K     |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3-medium-128k-instruct`        | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3-medium-4k-instruct`          | 4K      |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3-mini-128k-instruct`          | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3-mini-4k-instruct`            | 4K      |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3-small-128k-instruct`         | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3-small-8k-instruct`           | 8K      |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3.5-mini-instruct`             | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3.5-moe-instruct`              | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-3.5-vision-instruct`           | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-4`                             | 16K     |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-4-mini-instruct`               | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-4-mini-reasoning`              | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-4-multimodal-instruct`         | 128K    |       |           |       |       |       | —          | —           |
| `github-models/microsoft/phi-4-reasoning`                   | 128K    |       |           |       |       |       | —          | —           |
| `github-models/mistral-ai/codestral-2501`                   | 32K     |       |           |       |       |       | —          | —           |
| `github-models/mistral-ai/ministral-3b`                     | 128K    |       |           |       |       |       | —          | —           |
| `github-models/mistral-ai/mistral-large-2411`               | 128K    |       |           |       |       |       | —          | —           |
| `github-models/mistral-ai/mistral-medium-2505`              | 128K    |       |           |       |       |       | —          | —           |
| `github-models/mistral-ai/mistral-nemo`                     | 128K    |       |           |       |       |       | —          | —           |
| `github-models/mistral-ai/mistral-small-2503`               | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/gpt-4.1`                              | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/gpt-4.1-mini`                         | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/gpt-4.1-nano`                         | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/gpt-4o`                               | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/gpt-4o-mini`                          | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/o1`                                   | 200K    |       |           |       |       |       | —          | —           |
| `github-models/openai/o1-mini`                              | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/o1-preview`                           | 128K    |       |           |       |       |       | —          | —           |
| `github-models/openai/o3`                                   | 200K    |       |           |       |       |       | —          | —           |
| `github-models/openai/o3-mini`                              | 200K    |       |           |       |       |       | —          | —           |
| `github-models/openai/o4-mini`                              | 200K    |       |           |       |       |       | —          | —           |
| `github-models/xai/grok-3`                                  | 128K    |       |           |       |       |       | —          | —           |
| `github-models/xai/grok-3-mini`                             | 128K    |       |           |       |       |       | —          | —           |

## Advanced configuration

### Custom headers

```typescript
const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://models.github.ai/inference",
    id: "github-models/ai21-labs/ai21-jamba-1.5-large",
    apiKey: process.env.GITHUB_TOKEN,
    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
      ? "github-models/xai/grok-3-mini"
      : "github-models/ai21-labs/ai21-jamba-1.5-large";
  }
});
```