Open-source project

Grok Build

xai-org/grok-build

xAI's coding agent harness and TUI.

Grok Build is xAI's open-source coding agent harness — a fullscreen, mouse-interactive terminal UI with an extensible tool system around Grok models. The fourth major first-party harness, open-sourced unusually early.

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In the news

Open SourceGitHub · Jul 14, 2026

xAI open-sources Grok Build, its coding agent harness

xAI open-sources Grok Build — a Rust coding agent harness and fullscreen TUI around Grok models — unusually early for a first-party tool. It joins Claude Code, Codex and Gemini CLI as the fourth major first-party harness, now with a fourth open one.

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