Cosine vs. Zero

Feature	Cosine	Zero

Tagline	Your coding agent in your terminal.	Open-source Go coding agent for the terminal, 25+ providers
Website	https://cosine.sh/cli	https://zero.gitlawb.com/
Language	go	go
Release Date		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	No	Yes
IDE Integration	VS Code	Zed, JetBrains, Neovim (via ACP)
Hooks / Extensions	Yes	Yes
Web Search	Yes	No
Local Model Support	No	Yes
Context Window	Model dependent	Model-dependent; auto-compaction
Supported Models	Lumen Scout, Lumen Outpost; GPT-5.5/5.4, Claude Opus 4.7/4.6, Claude Sonnet 4.6, Gemini 3.1 Pro, Gemini 3 Flash, Kimi K2.6, GLM 5.1, MiniMax M2.7, Qwen 3.6 Plus, DeepSeek v4 Pro	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	—	ChatGPT SuperGrokX Premium+
Pricing Model	Usage Based, Freemium, Subscription	Free, BYOK
Free Tier	No	Yes
Price Range	$19-999/mo	Free (BYOK)
Source Code Availability	Proprietary Software	Open Source (MIT)
Source Code	N/A	https://github.com/Gitlawb/zero
Development State	active	active