> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wednesdayai.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# xAI (Grok)

> Connect WednesdayAI to xAI's Grok model family: configuration, authentication, and available models.

# xAI (Grok)

xAI provides the Grok model family through an OpenAI-compatible API. WednesdayAI integrates with xAI for text and vision inference. The default model is `grok-4`.

## Prerequisites

* An xAI API key from [console.x.ai](https://console.x.ai)

## Quick setup

### 1. Get an API key

Sign in to [console.x.ai](https://console.x.ai) and create an API key. Keys start with `xai-`.

Store it on the gateway host:

```bash theme={"dark"}
echo 'XAI_API_KEY=xai-...' >> ~/.openclaw/.env
```

### 2. Run onboarding

```bash theme={"dark"}
openclaw onboard --auth-choice xai-api-key
```

Or non-interactive:

```bash theme={"dark"}
openclaw onboard --non-interactive \
  --mode local \
  --auth-choice xai-api-key \
  --xai-api-key "$XAI_API_KEY"
```

### 3. Configure

```json5 theme={"dark"}
{
  models: {
    providers: {
      xai: {
        apiKey: "XAI_API_KEY", // references the env var
      },
    },
  },
  agents: {
    defaults: {
      model: { primary: "xai/grok-4" },
    },
  },
}
```

<Note>
  `apiKey` is the name of the environment variable, not the key value itself. Keep secrets in `.env`, not in committed config files.
</Note>

## Provider settings

| Setting                | Value                 |
| ---------------------- | --------------------- |
| Provider ID            | `xai`                 |
| Base URL               | `https://api.x.ai/v1` |
| API                    | OpenAI-compatible     |
| Auth env var           | `XAI_API_KEY`         |
| Default model          | `grok-4`              |
| Default context window | 256,000 tokens        |

## Verification

```bash theme={"dark"}
openclaw models status --probe-provider xai
```

## Available models

| Model ID                      | Context | Notes              |
| ----------------------------- | ------- | ------------------ |
| `grok-4`                      | 256K    | Default; reasoning |
| `grok-4-fast`                 | 2M      | Reasoning; vision  |
| `grok-4-fast-non-reasoning`   | 2M      | Vision             |
| `grok-4-1-fast`               | 2M      | Reasoning; vision  |
| `grok-4-1-fast-non-reasoning` | 2M      | Vision             |
| `grok-code-fast-1`            | 256K    | Reasoning; coding  |
| `grok-3`                      | 131K    |                    |
| `grok-3-latest`               | 131K    |                    |
| `grok-3-fast`                 | 131K    |                    |
| `grok-3-mini`                 | 131K    | Reasoning          |
| `grok-3-mini-fast`            | 131K    | Reasoning          |
| `grok-2`                      | 131K    |                    |
| `grok-2-vision`               | 8K      | Vision             |

Use model IDs as `xai/<model-id>` — for example, `xai/grok-4`.

Run `openclaw models list --provider xai` for the full current catalog.

## Web search with Grok

Grok supports live web search. Configure it separately for the web search tool:

```json5 theme={"dark"}
{
  tools: {
    web: {
      search: {
        grok: {
          apiKey: "XAI_API_KEY", // falls back to XAI_API_KEY env var
        },
      },
    },
  },
}
```

The web search tool uses `grok-4-1-fast` by default when Grok search is enabled.

## Troubleshooting

<AccordionGroup>
  <Accordion title="401 Unauthorized">
    Verify your key starts with `xai-` and is copied in full. Re-run `openclaw onboard --auth-choice xai-api-key` to refresh the stored credential.
  </Accordion>

  <Accordion title="Tool schema errors">
    xAI rejects certain JSON Schema keywords in tool definitions. WednesdayAI automatically sanitizes tool schemas for xAI — no configuration needed.
  </Accordion>

  <Accordion title="Model not found">
    Confirm the model ID is correct and your xAI plan includes it. Run `openclaw models status` to see detected xAI models.
  </Accordion>
</AccordionGroup>

## Related

* [AI providers overview](/admin/providers/index)
* [Reference: config](/reference/config)