Junie CLI vs zerostack

Feature	Junie CLI	zerostack

Tagline	An LLM-agnostic coding agent built for real-world development	Minimal Rust coding agent optimized for memory footprint
Website	https://junie.jetbrains.com	https://gi-dellav.github.io/zerostack/
Language	shell	rust
Release Date	July 15, 2025	May 12, 2026
Last Updated	June 3, 2026	September 4, 2026
Provider Type	Independent	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	No	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	JetBrains IDEs	Zed (via ACP), Neovim (via CodeCompanion.nvim + ACP)
Hooks / Extensions	No	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent; auto-compaction
Terminal Bench	#21 · 71.0% ±2.9 (Terminal-Bench 2.0) ¹
Supported Models	Multi-provider including BYOK	OpenRouter (default), OpenAI, Anthropic, Gemini, Ollama, plus unlimited custom OpenAI-compatible endpoints (vLLM, LiteLLM, enterprise gateways)
Pricing Model	Freemium	Free, BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK) / $10-60/mo	Free (BYOK)
Source Code Availability	Proprietary Software	Open Source (GPL-3.0)
Source Code	https://github.com/JetBrains/junie	https://github.com/gi-dellav/zerostack
Development State	active	active