Agents

10 coding/dev agents compared across 16 features

Aider

Aider (open source)

Open source (bring your own API key)

Claude Code

Anthropic

Claude Pro/Max subscription or API usage

Cline

Cline (open source)

Open source (bring your own API key)

Codex

OpenAI

ChatGPT subscription or API usage

Cursor

Anysphere

Free tier + Pro/Business subscription

Devin

Cognition

Subscription + usage (ACUs)

Gemini CLI

Google

Free tier + API usage

GitHub Copilot

GitHub / Microsoft

Free tier + subscription (Pro/Business/Enterprise)

Hermes Agent

Nous Research

Open source (self-host; bring your own model)

Windsurf

Cognition (formerly Codeium)

Free tier + Pro subscription

Agent	Vendor	Type	Open source	Models	Pricing
Aider	Aider (open source)	CLI		—	Open source (bring your own API key)
Claude Code	Anthropic	CLI	—	3	Claude Pro/Max subscription or API usage
Cline	Cline (open source)	IDE Extension		—	Open source (bring your own API key)
Codex	OpenAI	CLI		3	ChatGPT subscription or API usage
Cursor	Anysphere	IDE	—	4	Free tier + Pro/Business subscription
Devin	Cognition	Autonomous	—	—	Subscription + usage (ACUs)
Gemini CLI	Google	CLI		2	Free tier + API usage
GitHub Copilot	GitHub / Microsoft	IDE Extension	—	—	Free tier + subscription (Pro/Business/Enterprise)
Hermes Agent	Nous Research	Autonomous		—	Open source (self-host; bring your own model)
Windsurf	Cognition (formerly Codeium)	IDE	—	—	Free tier + Pro subscription