⁷ ConfigurationModels
xAI (Grok)
xAI Provider
The xAI provider enables you to use Elon Musk's xAI Grok models in your Life.js agent.
Configuration
import { Agent } from "life/agent";
const agent = new Agent({
llm: {
provider: "xai",
apiKey: "xai-...", // Or set XAI_API_KEY environment variable
model: "grok-3-mini", // Default model
temperature: 0.5, // Controls randomness (0.0 to 2.0)
},
// ... other config
});Environment Variables
Set your xAI API key as an environment variable:
export XAI_API_KEY="xai-..."Available Models
| Model | Description |
|---|---|
grok-3 | Latest Grok model with best performance |
grok-3-fast | Faster variant of Grok 3 |
grok-3-mini | Smaller, more efficient model (default) |
grok-3-mini-fast | Fastest variant of Grok 3 Mini |
grok-2-1212 | Previous generation Grok model |
grok-2-vision-1212 | Vision-capable Grok model |
grok-beta | Beta model with latest features |
grok-vision-beta | Beta vision model |
Configuration Schema
{
apiKey: string; // xAI API key (required)
model: string; // Model name (see table above)
temperature: number; // 0.0 to 2.0, controls randomness
}Features
- ✅ Chat completions
- ✅ Streaming responses
- ✅ Function/tool calling
- ✅ JSON mode (structured output)
- ✅ Vision models (for image input)
Getting Started
- Get your API key: Visit x.ai/api to obtain your xAI API key
- Set environment variable:
export XAI_API_KEY="your-key-here" - Configure your agent: Use the configuration example above
- Start building: Your agent is now ready to use Grok models!
Example Usage
import { Agent } from "life/agent";
const agent = new Agent({
llm: {
provider: "xai",
model: "grok-3-mini",
temperature: 0.7,
},
});
// The agent will now use xAI's Grok models for all LLM operations