Codewhale vs. zerostack

Feature	Codewhale	zerostack

Tagline	Community-driven coding agent that runs a different model per role	Minimal Rust coding agent optimized for memory footprint
Website	https://codewhale.net/	https://gi-dellav.github.io/zerostack/
Language	rust	rust
Release Date	January 19, 2026	May 12, 2026
Last Updated	September 4, 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	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	Editors via ACP (registry submission pending)	Zed (via ACP), Neovim (via CodeCompanion.nvim + ACP)
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent; auto-compaction
Supported Models	30+ providers: DeepSeek, Claude, GPT, Kimi, GLM, Qwen, Grok, Mistral, Xiaomi MiMo, Alibaba Model Studio, SiliconFlow, OpenCode Zen, Hugging Face; local via vLLM, SGLang, Ollama	OpenRouter (default), OpenAI, Anthropic, Gemini, Ollama, plus unlimited custom OpenAI-compatible endpoints (vLLM, LiteLLM, enterprise gateways)
Supported Subscriptions	ChatGPT SuperGrok	—
Pricing Model	Free, BYOK	Free, BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free (BYOK)
Source Code Availability	Open Source (MIT)	Open Source (GPL-3.0)
Source Code	https://github.com/Hmbown/CodeWhale	https://github.com/gi-dellav/zerostack
Development State	active	active