Vix vs. zerostack

Feature	Vix	zerostack

Tagline	Sleek, Fast and Token Efficient AI Coding Agent	Minimal Rust coding agent optimized for memory footprint
Website	https://getvix.dev	https://gi-dellav.github.io/zerostack/
Language	go	rust
Release Date	June 1, 2026	May 12, 2026
Last Updated	August 19, 2026	September 4, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	shallow	deep
Multi-File Editing	No	Yes
Auto Test Running	No	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	N/A	Zed (via ACP), Neovim (via CodeCompanion.nvim + ACP)
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	No	Yes
Context Window	Model-dependent	Model-dependent; auto-compaction
Terminal Bench 2.0	#1 · 90.0% ±2.1 ¹
Supported Models	Anthropic Models (Opus 4.8 / 4.7 / 4.6), OpenAI (GPT-5.1 / o3 / 4o), MiniMax, Xiaomin MiMo and 300+ Models on OpenRouter.	OpenRouter (default), OpenAI, Anthropic, Gemini, Ollama, plus unlimited custom OpenAI-compatible endpoints (vLLM, LiteLLM, enterprise gateways)
Supported Subscriptions	Claude Code ChatGPT	—
Pricing Model	Free	Free, BYOK
Free Tier	No	Yes
Price Range	$0	Free (BYOK)
Source Code Availability	Open Source (AGPL-3.0)	Open Source (GPL-3.0)
Source Code	https://github.com/kirby88/vix	https://github.com/gi-dellav/zerostack
Development State	active	active