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

# ![AKI.IO logo](https://models.dev/logos/aki-io.svg)AKI.IO

Access 6 AKI.IO models through Mastra's model router. Authentication is handled automatically using the `AKI_IO_API_KEY` environment variable.

Learn more in the [AKI.IO documentation](https://aki.io/docs/).

```bash
AKI_IO_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: "aki-io/gemma4-26b"
});

// 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 [AKI.IO documentation](https://aki.io/docs/) for details.

## Models

| Model                         | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ----------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `aki-io/gemma4-26b`           | 256K    |       |           |       |       |       | $0.10      | $0.50       |
| `aki-io/gpt-oss-120b`         | 128K    |       |           |       |       |       | $0.15      | $0.55       |
| `aki-io/kimi-k2.7-code-1100b` | 262K    |       |           |       |       |       | $0.86      | $3          |
| `aki-io/minimax-m2.5-230b`    | 197K    |       |           |       |       |       | $0.25      | $1          |
| `aki-io/mistral4-119b`        | 262K    |       |           |       |       |       | $0.20      | $0.60       |
| `aki-io/qwen3.6-35b`          | 256K    |       |           |       |       |       | $0.15      | $0.50       |

## Advanced configuration

### Custom headers

```typescript
const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://aki.io/v1",
    id: "aki-io/gemma4-26b",
    apiKey: process.env.AKI_IO_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
      ? "aki-io/qwen3.6-35b"
      : "aki-io/gemma4-26b";
  }
});
```