Muse Code vs. OpenBlock

Feature	Muse Code	OpenBlock

Tagline	Meta's coding agent for the terminal and CI, built on Muse Spark	A self-improving coding agent that handles the full dev lifecycle
Website	https://developer.meta.com/ai/products/muse-code/	https://openblocklabs.com/
Language	rust	typescript
Release Date	August 5, 2026	March 16, 2026
Last Updated	September 4, 2026	August 19, 2026
Provider Type	AI Lab	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	deep
Multi-File Editing	Yes	Yes
Auto Test Running	No	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	None - terminal only	None - Terminal only
Hooks / Extensions	Yes	Yes
Web Search	No	Yes
Local Model Support	No	Yes
Context Window	1M tokens	Model-dependent
Supported Models	Muse Spark 1.2, Muse Spark 1.1	400+ via OpenRouter (Claude, GPT, Gemini, Grok, open-source)
Pricing Model	Usage Based	Freemium
Free Tier	No	Yes
Price Range	Usage-based (from $0.10/M tokens)	$10-100 (credit-based)
Source Code Availability	Proprietary Software	Proprietary Software
Source Code	N/A	N/A
Development State	active	active