Muse Code vs. Vix

Feature	Muse Code	Vix

Tagline	Meta's coding agent for the terminal and CI, built on Muse Spark	Sleek, Fast and Token Efficient AI Coding Agent
Website	https://developer.meta.com/ai/products/muse-code/	https://getvix.dev
Language	rust	go
Release Date	August 5, 2026	June 1, 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	shallow
Multi-File Editing	Yes	No
Auto Test Running	No	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	None - terminal only	N/A
Hooks / Extensions	Yes	Yes
Web Search	No	Yes
Local Model Support	No	No
Context Window	1M tokens	Model-dependent
Terminal Bench 2.0		#1 · 90.0% ±2.1 ²
Supported Models	Muse Spark 1.2, Muse Spark 1.1	Anthropic Models (Opus 4.8 / 4.7 / 4.6), OpenAI (GPT-5.1 / o3 / 4o), MiniMax, Xiaomin MiMo and 300+ Models on OpenRouter.
Supported Subscriptions	—	Claude Code ChatGPT
Pricing Model	Usage Based	Free
Free Tier	No	No
Price Range	Usage-based (from $0.10/M tokens)	$0
Source Code Availability	Proprietary Software	Open Source (AGPL-3.0)
Source Code	N/A	https://github.com/kirby88/vix
Development State	active	active