OpenCode vs zerostack

Feature	OpenCode	zerostack

Tagline	The open source AI coding agent built for the terminal	Minimal Rust coding agent optimized for memory footprint
Website	https://opencode.ai	https://gi-dellav.github.io/zerostack/
Language	typescript	rust
Release Date	May 14, 2025	May 12, 2026
Last Updated	June 28, 2026	September 4, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	basic	deep
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	VS Code, Cursor	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; auto-compact	Model-dependent; auto-compaction
Terminal Bench	#60 · 51.7% (Terminal-Bench 2.0) ¹
AA Coding Agent Index	54% · GLM-5.3	-
Supported Models	OpenCode managed models, 400+ AI models from OpenRouter - OpenAI, Google, Moonshot AI, xAI, Minimax	OpenRouter (default), OpenAI, Anthropic, Gemini, Ollama, plus unlimited custom OpenAI-compatible endpoints (vLLM, LiteLLM, enterprise gateways)
Supported Subscriptions	ChatGPT SuperGrok GitHub Copilot OpenCode Go / Zen Ollama Cloud	-
Pricing Model	Freemium	Free, BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK) / $10/mo	Free (BYOK)
Source Code Availability	Open Source (MIT)	Open Source (GPL-3.0)
Source Code	https://github.com/anomalyco/opencode	https://github.com/gi-dellav/zerostack
Development State	active	active