openclaw/docs/providers/xai.md

summary, read_when, title

summary	read_when	title
Use xAI Grok models in OpenClaw	You want to use Grok models in OpenClaw You are configuring xAI auth or model ids	xAI

OpenClaw ships a bundled xai provider plugin for Grok models. The recommended path is Grok OAuth with an eligible SuperGrok or X Premium subscription. Gateway, config, routing, and tools stay local; only Grok requests go to xAI's API.

OAuth does not require an xAI API key or the Grok Build app. xAI may still show Grok Build on the consent screen because OpenClaw uses xAI's shared OAuth client.

Setup

Run onboarding with daemon install, then pick xAI/Grok OAuth at the model/auth step:

```bash
openclaw onboard --install-daemon
```

On a VPS or over SSH, select xAI OAuth directly; it uses device-code
verification and does not need a localhost callback:

```bash
openclaw onboard --install-daemon --auth-choice xai-oauth
```

Sign in to xAI only; do not rerun full onboarding just to connect Grok:

```bash
openclaw models auth login --provider xai --method oauth
```

Apply Grok as the default model separately:

```bash
openclaw models set xai/grok-4.3
```

Rerun full onboarding only if you intentionally want to change Gateway,
daemon, channel, workspace, or other setup choices.

API-key setup still works for xAI Console keys and for media surfaces that need key-backed provider config:

```bash
openclaw models auth login --provider xai --method api-key
export XAI_API_KEY=xai-...
```

```json5 { agents: { defaults: { model: { primary: "xai/grok-4.3" } } }, } ``` OpenClaw uses the xAI Responses API as the bundled xAI transport. The same credential from `openclaw models auth login --provider xai --method oauth` or `--method api-key` also powers `web_search` (provider id `grok`), `x_search`, `code_execution`, speech/transcription, and xAI image/video generation. If you store an xAI key under `plugins.entries.xai.config.webSearch.apiKey`, the bundled xAI model provider reuses it as a fallback too.

OAuth troubleshooting

• For SSH, Docker, VPS, or other remote setups, use openclaw models auth login --provider xai --method oauth; it uses device-code verification, not a localhost callback.

• If sign-in succeeds but Grok is not the default model, run openclaw models set xai/grok-4.3.

• Inspect saved xAI auth profiles:

  openclaw models auth list --provider xai
  openclaw models status
  

• xAI decides which accounts can receive OAuth API tokens. If an account is not eligible, use the API-key path or check the subscription on xAI's side.

Use `xai-oauth` when signing in from SSH, Docker, or a VPS. OpenClaw prints a URL and short code; finish sign-in in any local browser while the remote process polls xAI for the completed token exchange.

Built-in catalog

Selectable ids in model pickers. The plugin still resolves older Grok 3, Grok 4, Grok 4 Fast, Grok 4.1 Fast, and Grok Code ids for existing configs; see legacy compatibility and moving aliases.

Family	Model ids
Grok 4.5	grok-4.5 (aliases: grok-4.5-latest, grok-build-latest)
Grok Build 0.1	grok-build-0.1
Grok 4.3	grok-4.3 (aliases: grok-4.3-latest, grok-latest)
Grok 4.20	grok-4.20-0309-reasoning, grok-4.20-0309-non-reasoning

Use `grok-4.5` for general chat, coding, and agentic work where it is available. Grok 4.3 remains the regional-safe setup default; `grok-build-0.1` and both dated Grok 4.20 variants remain selectable.

Feature coverage

The bundled plugin maps supported xAI APIs onto OpenClaw's shared provider and tool contracts. Capabilities that do not fit the shared contract are listed below or under known limits.

xAI capability	OpenClaw surface	Status
Chat / Responses	xai/<model> model provider	Yes
Server-side web search	web_search provider grok	Yes
Server-side X search	x_search tool	Yes
Server-side code execution	code_execution tool	Yes
Images	image_generate	Yes
Videos	video_generate	Yes
Batch text-to-speech	messages.tts.provider: "xai" / tts	Yes
Streaming TTS	textToSpeechStream	Yes via wss://api.x.ai/v1/tts (not realtime voice)
Batch speech-to-text	tools.media.audio media understanding	Yes
Streaming speech-to-text	Voice Call streaming.provider: "xai"	Yes
Realtime voice	Talk talk.realtime.provider: "xai"	Yes; gateway-relay for native Talk nodes
Files / batches	Generic model API compatibility only	Not a first-class OpenClaw tool

OpenClaw uses xAI's REST image/video/TTS/STT APIs for media generation and batch transcription, xAI's streaming STT WebSocket for live voice-call transcription, xAI's Grok Voice Agent WebSocket for Talk realtime sessions, and the Responses API for chat, search, and code-execution tools.

Legacy fast-mode compatibility

/fast on or agents.defaults.models["xai/<model>"].params.fastMode: true still rewrites older xAI configurations as follows. These target ids are kept only for compatibility; use current selectable models for new configurations.

Source model	Fast-mode target
grok-3	grok-3-fast
grok-3-mini	grok-3-mini-fast
grok-4	grok-4-fast
grok-4-0709	grok-4-fast

Legacy compatibility and moving aliases

Older aliases normalize as follows:

Legacy alias	Normalized id
grok-code-fast-1, grok-code-fast, grok-code-fast-1-0825	grok-build-0.1

The dated 0309 ids are the selectable catalog entries. OpenClaw sends all other current Grok 4.20 aliases verbatim so xAI retains control of stable, latest, beta, experimental, and dated alias semantics. The global grok-latest alias is also preserved verbatim.

xAI retired the following exact ids. OpenClaw keeps them as hidden compatibility rows for shipped configurations, with the limits and pricing of their current redirect targets:

Retired ids	Current behavior
grok-4-1-fast-reasoning, grok-4-fast-reasoning, grok-4-0709	Grok 4.3 with low reasoning
grok-4-1-fast-non-reasoning, grok-4-fast-non-reasoning, grok-3	Grok 4.3 with reasoning disabled
grok-code-fast-1	Grok Build 0.1
grok-imagine-image-pro	Grok Imagine Image Quality

openclaw doctor --fix updates persisted xAI server-tool defaults and the retired quality image slug, removes stale generated catalog rows, and repairs stale context metadata on active 4.20 rows. It does not pin active 4.20 beta-latest aliases to a dated snapshot.

Features

`x_search` and `code_execution` run on xAI's servers. xAI bills $5 per 1,000 tool calls, plus the model's input and output tokens. With each tool's `enabled` setting omitted, OpenClaw exposes it only for an active xAI model. A known non-xAI model provider requires an explicit per-tool `enabled: true`; a missing or unresolved provider fails closed. xAI auth is always required, and `enabled: false` disables the tool for every provider. The bundled `grok` web-search provider prefers xAI OAuth, then falls back to `XAI_API_KEY` or a plugin web-search key:

```bash
openclaw models auth login --provider xai --method oauth
openclaw config set tools.web.search.provider grok
```

The bundled `xai` plugin registers video generation through the shared `video_generate` tool.

- Default model: `xai/grok-imagine-video`
- Additional model: `xai/grok-imagine-video-1.5`
- Classic modes: text-to-video, image-to-video, reference-image generation,
  remote video edit, and remote video extension
- Video 1.5 mode: image-to-video only, with exactly one first-frame image
- Aspect ratios: `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `3:2`, `2:3`;
  classic and Video 1.5 image-to-video inherit the source image ratio when
  omitted
- Resolutions: classic `480P`/`720P`; Video 1.5 also supports `1080P`; all
  generation modes default to `480P`
- Duration: 1-15 seconds for generation/image-to-video, 1-10 seconds when
  using classic `reference_image` roles, 2-10 seconds for classic extension
- Reference-image generation: set `imageRoles` to `reference_image` for
  every supplied image; xAI accepts up to 7 such images
- Video edit/extend inherit the input video's aspect ratio and resolution;
  those operations do not accept geometry overrides
- Default operation timeout: 600 seconds unless `video_generate.timeoutMs`
  or `agents.defaults.videoGenerationModel.timeoutMs` is set

<Warning>
Local video buffers are not accepted. Use remote `http(s)` URLs for video
edit/extend inputs. Image-to-video accepts local image buffers because
OpenClaw encodes those as data URLs for xAI.
</Warning>

Video 1.5 also recognizes xAI's `grok-imagine-video-1.5-preview` and
`grok-imagine-video-1.5-2026-05-30` identifiers. OpenClaw forwards the
selected identifier unchanged, but applies the same image-only validation.

To use xAI as the default video provider:

```json5
{
  agents: {
    defaults: {
      videoGenerationModel: {
        primary: "xai/grok-imagine-video",
      },
    },
  },
}
```

<Note>
See [Video Generation](/tools/video-generation) for shared tool
parameters, provider selection, and failover behavior.
</Note>

The bundled `xai` plugin registers image generation through the shared `image_generate` tool.

- Default image model: `xai/grok-imagine-image`
- Additional model: `xai/grok-imagine-image-quality`
- Modes: text-to-image and reference-image edit
- Reference inputs: one `image` or up to three `images`
- Aspect ratios: `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `3:2`, `2:3`, `2:1`,
  `1:2`, `19.5:9`, `9:19.5`, `20:9`, `9:20`
- Resolutions: `1K`, `2K`
- Count: up to 4 images
- Default operation timeout: 600 seconds unless `image_generate.timeoutMs`
  or `agents.defaults.imageGenerationModel.timeoutMs` is set

OpenClaw asks xAI for `b64_json` image responses so generated media can be
stored and delivered through the normal channel attachment path. Local
reference images are converted to data URLs; remote `http(s)` references
pass through unchanged.

To use xAI as the default image provider:

```json5
{
  agents: {
    defaults: {
      imageGenerationModel: {
        primary: "xai/grok-imagine-image",
      },
    },
  },
}
```

<Note>
xAI also documents `quality`, `mask`, `user`, and an `auto` aspect ratio.
OpenClaw forwards only the shared cross-provider image controls today;
these native-only knobs are not exposed through `image_generate`.
</Note>

The bundled `xai` plugin registers text-to-speech through the shared `tts` provider surface.

- Voices: authenticated live catalog from xAI; list it with
  `openclaw infer tts voices --provider xai`
- Offline fallback voices: `ara`, `eve`, `leo`, `rex`, `sal`
- Default voice: `eve`
- Account custom voice IDs are forwarded even when they are absent from the
  built-in catalog response
- Formats: `mp3`, `wav`, `pcm`, `mulaw`, `alaw`
- Language: BCP-47 code or `auto`
- Speed: provider-native speed override
- Native Opus voice-note format is not supported

To use xAI as the default TTS provider:

```json5
{
  messages: {
    tts: {
      provider: "xai",
      providers: {
        xai: {
          voiceId: "eve",
        },
      },
    },
  },
}
```

<Note>
OpenClaw uses xAI's batch `/v1/tts` endpoint for buffered synthesis,
authenticated `/v1/tts/voices` catalog discovery, and native
`wss://api.x.ai/v1/tts` for streaming synthesis. Streaming is restricted to
the native `api.x.ai` host, so custom `baseUrl` values are rejected on this
path. It uses the existing language, voice, codec, and speed controls; xAI
defaults apply to sample rate and bit rate. Audio-file synthesis honors all
configured codecs. Voice-note targets use MP3 for streaming and buffered
fallback because xAI's raw codecs do not carry codec/rate metadata. The
stream sends `text.delta` then
`text.done`, receives `audio.delta`, `audio.done`, or `error`, and applies an
idle `timeoutMs` that refreshes for every audio chunk. It is separate from
realtime voice sessions. See xAI's [Streaming TTS API](https://docs.x.ai/developers/rest-api-reference/inference/voice) contract.
</Note>

The bundled `xai` plugin registers batch speech-to-text through OpenClaw's media-understanding transcription surface.

- Endpoint: xAI REST `/v1/stt`
- Input path: multipart audio file upload
- Model selection: xAI chooses the transcription model internally; the
  endpoint has no model selector
- Used wherever inbound audio transcription reads `tools.media.audio`,
  including Discord voice-channel segments and channel audio attachments

To force xAI for inbound audio transcription:

```json5
{
  tools: {
    media: {
      audio: {
        models: [
          {
            type: "provider",
            provider: "xai",
          },
        ],
      },
    },
  },
}
```

Language can be supplied through the shared audio media config or per-call
transcription request. Prompt hints are accepted by the shared OpenClaw
surface, but the xAI REST STT integration forwards only file and language
because those map to the current public xAI endpoint.

The bundled `xai` plugin also registers a realtime transcription provider for live voice-call audio.

- Endpoint: xAI WebSocket `wss://api.x.ai/v1/stt`
- Default encoding: `mulaw`
- Default sample rate: `8000`
- Default endpointing: `800ms`
- Interim transcripts: enabled by default

Voice Call's Twilio media stream sends G.711 mu-law audio frames, so the
xAI provider forwards those frames directly without transcoding:

```json5
{
  plugins: {
    entries: {
      "voice-call": {
        config: {
          streaming: {
            enabled: true,
            provider: "xai",
            providers: {
              xai: {
                apiKey: "${XAI_API_KEY}",
                endpointingMs: 800,
                language: "en",
              },
            },
          },
        },
      },
    },
  },
}
```

Provider-owned config lives under
`plugins.entries.voice-call.config.streaming.providers.xai`. Supported
keys are `apiKey`, `baseUrl`, `sampleRate`, `encoding` (`pcm`, `mulaw`, or
`alaw`), `interimResults`, `endpointingMs`, and `language`.

<Note>
This streaming provider is for Voice Call's realtime transcription path.
Discord voice records short segments and uses the batch
`tools.media.audio` transcription path instead.
</Note>

The bundled `xai` plugin registers Grok Voice Agent realtime sessions for Talk mode through the shared `registerRealtimeVoiceProvider` contract.

- Endpoint: `wss://api.x.ai/v1/realtime?model=<voice-model>`
- Default model: `grok-voice-latest`
- Default voice: `eve`
- Transport: `gateway-relay` (iOS, Android, and Control UI relay paths)
- Audio: PCM16 24 kHz or G.711 µ-law 8 kHz
- Barge-in: xAI server VAD interrupts the response; OpenClaw clears queued playback
  and truncates unplayed provider history

Configure Talk on the Gateway:

```json5
{
  talk: {
    realtime: {
      provider: "xai",
      mode: "realtime",
      transport: "gateway-relay",
      brain: "agent-consult",
      providers: {
        xai: {
          model: "grok-voice-latest",
          voice: "eve",
          // Opt in only if provider-side session replay is acceptable.
          sessionResumption: false,
        },
      },
    },
  },
  env: { XAI_API_KEY: "xai-..." },
}
```

Provider-owned config also resolves from
`plugins.entries.voice-call.config.realtime.providers.xai` when Voice Call
or shared realtime selectors reuse the same provider map. Supported keys are
`apiKey`, `baseUrl`, `model`, `voice`, `vadThreshold`, `silenceDurationMs`,
`prefixPaddingMs`, `reasoningEffort`, and `sessionResumption`.
`reasoningEffort` accepts only `high` or `none`, matching the xAI Voice Agent API.

xAI's server VAD always creates responses and handles audio interruption.
Use `consultRouting: "provider-direct"`; forced transcript routing and disabling
input-audio interruption are not supported by the xAI Voice Agent protocol.

<Note>
xAI OAuth or `XAI_API_KEY` can authenticate realtime voice. Browser-owned
WebRTC is not part of this provider surface yet; use gateway-relay Talk on
native nodes or the Control UI relay path.
</Note>

<Note>
`sessionResumption` defaults to `false`. When set to `true`, OpenClaw asks
xAI to retain enough session state to resume the same conversation after a
reconnect and then reconnects with the returned conversation id. Leave it
disabled when provider-side replay/retention is not acceptable; interrupted
sockets then fail closed instead of silently starting a fresh conversation.
</Note>

The bundled xAI plugin exposes `x_search` as an OpenClaw tool for searching X (formerly Twitter) content via Grok.

Config path: `plugins.entries.xai.config.xSearch`

| Key               | Type    | Default                   | Description                                      |
| ----------------- | ------- | ------------------------- | ------------------------------------------------ |
| `enabled`         | boolean | Automatic for xAI models  | Disable, or opt in for a known non-xAI provider |
| `model`           | string  | `grok-4.3`                | Model used for x_search requests                 |
| `baseUrl`         | string  | -                         | xAI Responses base URL override                  |
| `inlineCitations` | boolean | -                         | Include inline citations in results              |
| `maxTurns`        | number  | -                         | Maximum conversation turns                       |
| `timeoutSeconds`  | number  | `30`                      | Request timeout in seconds                       |
| `cacheTtlMinutes` | number  | `15`                      | Cache time-to-live in minutes                    |

```json5
{
  plugins: {
    entries: {
      xai: {
        config: {
          xSearch: {
            enabled: true,
            model: "grok-4.3",
            baseUrl: "https://api.x.ai/v1",
            inlineCitations: true,
          },
        },
      },
    },
  },
}
```

The bundled xAI plugin exposes `code_execution` as an OpenClaw tool for remote code execution in xAI's sandbox environment.

Config path: `plugins.entries.xai.config.codeExecution`

| Key              | Type    | Default                  | Description                                      |
| ---------------- | ------- | ------------------------ | ------------------------------------------------ |
| `enabled`        | boolean | Automatic for xAI models | Disable, or opt in for a known non-xAI provider |
| `model`          | string  | `grok-4.3`               | Model used for code execution requests           |
| `maxTurns`       | number  | -                        | Maximum conversation turns                       |
| `timeoutSeconds` | number  | `30`                     | Request timeout in seconds                       |

<Note>
This is remote xAI sandbox execution, not local [`exec`](/tools/exec).
</Note>

```json5
{
  plugins: {
    entries: {
      xai: {
        config: {
          codeExecution: {
            enabled: true,
            model: "grok-4.3",
          },
        },
      },
    },
  },
}
```

- xAI auth can use an API key, environment variable, plugin config fallback, or OAuth with an eligible xAI account. OAuth uses device-code verification without a localhost callback. xAI decides which accounts can receive OAuth API tokens, and the consent page may show Grok Build even though OpenClaw does not require the Grok Build app. - OpenClaw does not currently expose the xAI multi-agent model family. xAI serves these models through the Responses API, but they do not accept the client-side or custom tools used by OpenClaw's shared agent loop. See the [xAI multi-agent limitations](https://docs.x.ai/developers/model-capabilities/text/multi-agent#limitations). - xAI Realtime voice currently exposes gateway-relay Talk transport only. Browser-owned provider WebSocket sessions are not wired in the Control UI yet. - xAI image `quality`, image `mask`, and extra native-only aspect ratios are not exposed until the shared `image_generate` tool has corresponding cross-provider controls. - OpenClaw applies xAI-specific tool-schema and tool-call compatibility fixes automatically on the shared runner path. - Native xAI requests default `tool_stream: true`. Set `agents.defaults.models["xai/"].params.tool_stream` to `false` to disable it. - The bundled xAI wrapper strips unsupported contains-count schema bounds and unsupported reasoning *effort* payload keys before sending native xAI requests. Grok 4.5 supports low, medium, and high effort (default high). Grok 4.3 supports none, low, medium, and high effort (default low). Other reasoning-capable xAI models do not expose a configurable effort control, but still request `include: ["reasoning.encrypted_content"]` so prior encrypted reasoning can be replayed on follow-up turns. - `web_search`, `x_search`, and `code_execution` are exposed as OpenClaw tools. OpenClaw attaches only the specific xAI built-in each tool needs to that tool's request instead of attaching every native tool to every chat turn. - Grok `web_search` reads `plugins.entries.xai.config.webSearch.baseUrl`. `x_search` reads `plugins.entries.xai.config.xSearch.baseUrl`, then falls back to the Grok web-search base URL. - `x_search` and `code_execution` are owned by the bundled xAI plugin rather than hardcoded into the core model runtime. - `code_execution` is remote xAI sandbox execution, not local [`exec`](/tools/exec).

Live testing

The xAI media paths are covered by unit tests and opt-in live suites. Export XAI_API_KEY in the process environment before running live probes.

pnpm test extensions/xai
OPENCLAW_LIVE_TEST=1 OPENCLAW_LIVE_TEST_QUIET=1 pnpm test:live -- extensions/xai/xai.live.test.ts
OPENCLAW_LIVE_TEST=1 OPENCLAW_LIVE_XAI_VIDEO=1 pnpm test:live -- extensions/xai/xai.live.test.ts -t "classic Grok Imagine"
OPENCLAW_LIVE_TEST=1 OPENCLAW_LIVE_XAI_VIDEO=1 pnpm test:live -- extensions/xai/xai.live.test.ts -t "Grok Imagine Video 1.5"
OPENCLAW_LIVE_TEST=1 OPENCLAW_LIVE_TEST_QUIET=1 pnpm test:live -- extensions/xai/x-search.live.test.ts
OPENCLAW_LIVE_GATEWAY_MODELS="xai/grok-4.5,xai/grok-build-0.1,xai/grok-4.3,xai/grok-4.20-0309-reasoning,xai/grok-4.20-0309-non-reasoning" OPENCLAW_LIVE_GATEWAY_MAX_MODELS=0 OPENCLAW_LIVE_GATEWAY_SMOKE=0 pnpm test:live -- src/gateway/gateway-models.profiles.live.test.ts
OPENCLAW_LIVE_TEST=1 OPENCLAW_LIVE_TEST_QUIET=1 OPENCLAW_LIVE_IMAGE_GENERATION_PROVIDERS=xai pnpm test:live -- test/image-generation.runtime.live.test.ts

The provider-specific live file synthesizes normal TTS, telephony-friendly PCM TTS, transcribes audio through xAI batch STT, streams the same PCM through xAI realtime STT, generates text-to-image output, and edits a reference image. The shared image live file verifies the same xAI provider through OpenClaw's runtime selection, fallback, normalization, and media attachment path. The opt-in Video 1.5 case submits one generated first-frame image at 1080P and verifies the completed video download.

Related

Choosing providers, model refs, and failover behavior. Shared video tool parameters and provider selection. The broader provider overview. Common issues and fixes.