Plandex vs. zerostack

Feature	Plandex	zerostack

Tagline	Open source AI coding agent for large projects and real world tasks	Minimal Rust coding agent optimized for memory footprint
Website	https://github.com/plandex-ai/plandex	https://gi-dellav.github.io/zerostack/
Language	go	rust
Release Date	March 14, 2024	May 12, 2026
Last Updated	August 19, 2026	September 4, 2026
Provider Type	Independent	Independent
MCP Support	No	Yes
Multi-Agent Support	No	Yes
Git Integration	deep	deep
Multi-File Editing	No	Yes
Auto Test Running	Yes	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	No	Yes
Voice Mode	No	No
IDE Integration	None - Terminal only	Zed (via ACP), Neovim (via CodeCompanion.nvim + ACP)
Hooks / Extensions	No	Yes
Web Search	No	Yes
Local Model Support	Yes	Yes
Context Window	2M tokens effective	Model-dependent; auto-compaction
Supported Models	Any OpenAI-compatible models and 400+ models from OpenRouter.	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 (self-hosted)	Free (BYOK)
Source Code Availability	Open Source (MIT)	Open Source (GPL-3.0)
Source Code	https://github.com/plandex-ai/plandex	https://github.com/gi-dellav/zerostack
Development State	inactive	active