Grok Build
xAI's terminal coding agent, run as the grok command and now powered by Grok 4.7. It ships as a fullscreen, mouse-interactive TUI, a headless mode for scripts and CI, and an Agent Client Protocol (ACP) interface for use inside other apps. Larger tasks are split across parallel subagents, each with its own context window and optionally its own git worktree, and plan mode blocks every edit until the plan is approved. Skills, plugins, hooks, MCP servers, and AGENTS.md files work out of the box. The Rust source is on GitHub under the Apache 2.0 license. On the Terminal-Bench 4.0 board, Grok Build with Grok 4.7 scores 37.6 percent, a 17-point gain over Grok 4.6 (20.3) on the same harness, with Grok 4.5 at 12.4.
Leaderboard Placements
Live board as of 2026-10-28: federated Terminal-Bench rows, with TensorFeed editorial scores for harnesses the board does not cover.
| Benchmark | Best base model | Score | Rank |
|---|---|---|---|
| SWE-bench Verified | - | - | - |
| Terminal-Bench | - | - | - |
| Terminal-Bench 2.1 | - | - | - |
| Terminal-Bench 3.0 | Grok 4.6 | 26.5 | #4 / 11 |
| Terminal-Bench 4.0 | Grok 4.7 | 37.6 | #10 / 21 |
| Aider Polyglot | - | - | - |
| SWE-Lancer | - | - | - |
Distribution
Open-source CLI under the Apache 2.0 license, written in Rust. Install with curl -fsSL https://x.ai/cli/install.sh | bash on macOS, Linux, and WSL, or the PowerShell installer on Windows. On first launch it signs in through the browser; headless environments use an XAI_API_KEY.
Model Story
Grok 4.7 by default. Any custom model can be added in ~/.grok/config.toml with its own base URL and API key, then picked with -m or /model.
Pricing
Free to try. xAI subscriptions share one AI usage pool across Grok Chat, Voice, Imagine, and Build; with an XAI_API_KEY, usage bills to the xAI API instead.
Who It's For
Engineers who want an open-source terminal agent with parallel subagents and plan approval, on Grok models or their own endpoints.
Notable Features
- Parallel subagents, each with its own context window and optional git worktree
- Plan mode that blocks edits until the plan is approved
- Skills, plugins, hooks, MCP servers, and AGENTS.md out of the box
- Headless mode (-p) with streaming-json output
- Agent Client Protocol (ACP) for use inside other apps