Grok Build CLI vs. Muse Code

Feature	Grok Build CLI	Muse Code

Tagline	Bring Grok into your terminal	Meta's coding agent for the terminal and CI, built on Muse Spark
Website	https://x.ai/cli	https://developer.meta.com/ai/products/muse-code/
Language	rust	rust
Release Date	May 14, 2026	August 5, 2026
Last Updated	August 19, 2026	September 4, 2026
Provider Type	AI Lab	AI Lab
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	deep
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	Yes
IDE Integration	None - Terminal only	None - terminal only
Hooks / Extensions	Yes	Yes
Web Search	Yes	No
Local Model Support	Yes	No
Context Window	Model-dependent	1M tokens
Supported Models	SuperGrok Heavy, Grok 4.5, 4.20, Grok 4, Grok Build 0.1, custom models including OpenAI compatible models	Muse Spark 1.2, Muse Spark 1.1
Supported Subscriptions	SuperGrok X Premium	—
Pricing Model	Subscription	Usage Based
Free Tier	Yes	No
Price Range	$0 (3 Day Trial) / $30 monthly (SuperGrok) / $300 monthly (SuperGrok Heavy)	Usage-based (from $0.10/M tokens)
Source Code Availability	Open Source (EULA)	Proprietary Software
Source Code	https://github.com/xai-org/grok-build	N/A
Development State	active	active