# Grok Build

SpaceXAI's open-source terminal coding agent (the grok CLI): a full-screen, mouse-interactive TUI that edits files, runs commands and searches the web, with plan mode, subagents, skills, hooks, MCP servers and AGENTS.md support, plus headless and ACP modes for scripts, CI and editors.

- Website: https://x.ai/build
- Hub: Vibe Coding
- Category: Terminal coding agent
- Best for: Terminal-first devs on the X Subscription who want a Grok-powered coding agent
- Pricing: Limited on the free X Subscription tier; included in X Subscription Plus $8/mo, Premium $30/mo, Super $100/mo and Ultra $200/mo (shared usage pool); or pay-as-you-go with an xAI API key (grok-build-0.1 at $1/$2 per 1M input/output tokens) (checked 2026-10-22, source: https://x.ai/pricing)
- Free tier: Yes
- Open source: Yes
- License: Apache-2.0
- Note: Source: x.ai/build, docs.x.ai/build/overview, docs.x.ai/x-subscription/pricing, docs.x.ai/developers/pricing and github.com/xai-org/grok-build (Apache-2.0 Rust source, about 27.5k stars on 2026-10-22). Install with the x.ai shell script, PowerShell or npm (@xai-official/grok); runs on macOS, Linux and Windows. Now powered by Grok 4.7 per x.ai/build; Grok 4.7 Fast is billed through your plan and isn't in the free tier. Not yet tested or ranked.
- Hands-on test: coming
- Page: https://vibetested.app/tools/grok-build/