Gemini CLI vs. zerostack

Feature	Gemini CLI	zerostack

Tagline	An open-source AI agent that brings Gemini into your terminal	Minimal Rust coding agent optimized for memory footprint
Website	https://geminicli.com	https://gi-dellav.github.io/zerostack/
Language	typescript	rust
Release Date	June 24, 2025	May 12, 2026
Last Updated	June 29, 2026	September 4, 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	Yes	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	Antigravity, VS Code, JetBrains IDEs (ACP), Zed (ACP)	Zed (via ACP), Neovim (via CodeCompanion.nvim + ACP)
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	1M tokens	Model-dependent; auto-compaction
Terminal Bench 2.0	#42 · 61.4% ±4.1 ¹
Supported Models	Gemini 3.5 Flash, Gemini 3.1 Pro	OpenRouter (default), OpenAI, Anthropic, Gemini, Ollama, plus unlimited custom OpenAI-compatible endpoints (vLLM, LiteLLM, enterprise gateways)
Pricing Model	Free	Free, BYOK
Free Tier	Yes	Yes
Price Range	Free (1,000 req/day)	Free (BYOK)
Source Code Availability	Open Source (Apache-2.0)	Open Source (GPL-3.0)
Source Code	https://github.com/google-gemini/gemini-cli	https://github.com/gi-dellav/zerostack
Development State	active	active