Aider vs. Zero

Feature	Aider	Zero

Tagline	AI pair programming in your terminal	Open-source Go coding agent for the terminal, 25+ providers
Website	https://aider.chat	https://zero.gitlawb.com/
Language	python	go
Release Date	July 8, 2023	May 28, 2026
Last Updated	June 29, 2026	September 4, 2026
Provider Type	Independent	Independent
MCP Support	No	Yes
Multi-Agent Support	No	Yes
Git Integration	deep	deep
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	Yes
Sandbox / Permissions	No	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	Yes
IDE Integration	VS Code, Neovim, Emacs	Zed, JetBrains, Neovim (via ACP)
Hooks / Extensions	Yes	Yes
Web Search	No	No
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent; auto-compaction
Supported Models	Claude Sonnet 4.5/4.6, Claude Opus 4.5/4.6, GPT-5.4, GPT-4o, DeepSeek, Gemini, Llama, Qwen	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	BYOK	Free, BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free (BYOK)
Source Code Availability	Open Source (Apache-2.0)	Open Source (MIT)
Source Code	https://github.com/Aider-AI/aider	https://github.com/Gitlawb/zero
Development State	active	active