Claude Code vs Zero

Feature	Claude Code	Zero

Tagline	An agentic coding tool that lives in your terminal	Open-source Go coding agent for the terminal, 25+ providers
Website	https://claude.ai/code	https://zero.gitlawb.com/
Language	typescript	go
Release Date	February 22, 2025	May 28, 2026
Last Updated	September 4, 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	Yes
IDE Integration	VS Code, JetBrains	Zed, JetBrains, Neovim (via ACP)
Hooks / Extensions	Yes	Yes
Web Search	Yes	No
Local Model Support	Yes	Yes
Context Window	1M tokens	Model-dependent; auto-compaction
Terminal Bench	#2 · 57.9% ±3.8 (Terminal-Bench 4.0) ¹
AA Coding Agent Index	62% · Fable 5.1 (max, with fallback)	-
Supported Models	Claude Fable 5 / Mythos 5 (Restricted Availability), Opus 4.8, Claude Sonnet 4.6, Claude Haiku 4.5	25+ providers: GitLawb OpenGateway (default), AI/ML API, OpenAI, Anthropic, Gemini, xAI, ChatGPT/Codex, OpenRouter, Groq, DeepSeek, Together, Fireworks, Qwen, Moonshot, MiniMax, Bedrock, Vertex, Z.ai, KiloCode, OpenCode Zen/Go; local via Ollama and LM Studio
Supported Subscriptions	Claude Code	ChatGPT SuperGrok X Premium+
Pricing Model	Subscription	Free, BYOK
Free Tier	No	Yes
Price Range	$17-200/mo	Free (BYOK)
Source Code Availability	Proprietary Software	Open Source (MIT)
Source Code	https://github.com/anthropics/claude-code	https://github.com/Gitlawb/zero
Development State	active	active