Vibe Grok Build: AI agent (CLI agent) in 2026
xAI's terminal coding agent (the grok CLI): a full-screen TUI that also runs headless and over the Agent Client Protocol.
Sourced facts checked 2026-10-17 Rank 1 of 16 in CLI agent. Source: Official site or docs, checked 2026-10-17.
Key facts
| Type | AI agent |
|---|---|
| Category | CLI agent |
| Maker | SpaceXAI (xAI) |
| Interface | CLI, IDE (ACP) |
| Licence | Apache-2.0 (Open source) |
| GitHub stars | 27,429 (as of 2026-10-17) |
| Supported models | Grok models (default); docs say it 'supports any custom model' via ~/.grok/config.toml |
| MCP support | Yes (per official docs) |
| Subagents | Yes |
| Headless mode | Yes |
| Sandboxing | Yes |
| Pricing (official) | Included in xAI subscription plans. Plus ($8/mo) lists Grok Chat, Voice, Imagine and Build. Premium is $30/mo, Super $100/mo and Ultra $200/mo, each with more usage. Teams costs $30+/user/mo and Enterprise is custom. You can also use an XAI_API_KEY. (checked 2026-10-17) |
| Note | The README says the repo is 'synced periodically from the SpaceXAI monorepo'. The community superagent-ai/grok-cli is a different project. |
| Website | https://docs.x.ai/build/overview |
| Repository | https://github.com/xai-org/grok-build |
| Source | https://docs.x.ai/build/overview (checked 2026-10-17) |
| Vibe Shipped harness page | https://vibeshipped.io/harness/grok-build |
Install
Install
This agent is an MCP client (official docs). To give it a server from this directory, add that server in this agent's own MCP settings; every MCP server entry shows the snippet.
Source: https://docs.x.ai/build/overview (checked 2026-10-17).
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