# ![LLMTR logo](https://models.dev/logos/llmtr.svg)LLMTR

Access 6 LLMTR models through Mastra's model router. Authentication is handled automatically using the `LLMTR_API_KEY` environment variable.

Learn more in the [LLMTR documentation](https://llmtr.com/docs).

```bash
LLMTR_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: "llmtr/gemma-4"
});

// 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 [LLMTR documentation](https://llmtr.com/docs) for details.

## Models

| Model                 | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| --------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `llmtr/gemma-4`       | 33K     |       |           |       |       |       | $5         | $10         |
| `llmtr/magibu-11b-v8` | 8K      |       |           |       |       |       | —          | —           |
| `llmtr/medgemma-4b`   | 8K      |       |           |       |       |       | $3         | $5          |
| `llmtr/qwen3-6-35b`   | 16K     |       |           |       |       |       | $5         | $10         |
| `llmtr/sincap`        | 128K    |       |           |       |       |       | —          | —           |
| `llmtr/trendyol-7b`   | 33K     |       |           |       |       |       | —          | —           |

## Advanced configuration

### Custom headers

```typescript
const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://llmtr.com/v1",
    id: "llmtr/gemma-4",
    apiKey: process.env.LLMTR_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
      ? "llmtr/trendyol-7b"
      : "llmtr/gemma-4";
  }
});
```