Aider vs. Cosine

Feature	Aider	Cosine

Tagline	AI pair programming in your terminal	Your coding agent in your terminal.
Website	https://aider.chat	https://cosine.sh/cli
Language	python	go
Release Date	July 8, 2023
Last Updated	June 29, 2026	September 4, 2026
Provider Type	Independent	AI Lab
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	No
IDE Integration	VS Code, Neovim, Emacs	VS Code
Hooks / Extensions	Yes	Yes
Web Search	No	Yes
Local Model Support	Yes	No
Context Window	Model-dependent	Model dependent
Supported Models	Claude Sonnet 4.5/4.6, Claude Opus 4.5/4.6, GPT-5.4, GPT-4o, DeepSeek, Gemini, Llama, Qwen	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
Pricing Model	BYOK	Usage Based, Freemium, Subscription
Free Tier	Yes	No
Price Range	Free (BYOK)	$19-999/mo
Source Code Availability	Open Source (Apache-2.0)	Proprietary Software
Source Code	https://github.com/Aider-AI/aider	N/A
Development State	active	active