Best terminal coding agent
Short answer: Claude Code is our initial pick for terminal coding agent, with OpenAI Codex as the runner-up, based on verified features and pricing (hands-on tests coming).
⚠ Initial picks, hands-on tests coming. No scores yet: we only publish scores from real test runs. Last checked 2026-10-17.
Agents that run in your shell and edit across a repo. Claude Code has verified paid plans from $20/mo; Gemini CLI, OpenCode, Aider and the Codex CLI are open source.
The picks
Claude Code
Terminal-first devs doing multi-file changes
Free plan; Pro $20/mo billed monthly ($17/mo annual); Max from $100/mo (Claude plans) (checked 2026-10-17)
free tierTerminal coding agent- open sourceTerminal coding agent
- open sourcefree tierTerminal coding agent
- open sourcefree tierTerminal coding agent
- open sourcefree tierTerminal coding agent
FAQ
What is the best terminal coding agent?
Claude Code is our initial pick for terminal coding agent, with OpenAI Codex as the runner-up, based on verified features and pricing (hands-on tests coming).
Which of these have a free tier?
Verified free tier: Claude Code, Gemini CLI, OpenCode, Aider. Not verified or no free tier: OpenAI Codex.
Which are open source?
OpenAI Codex (Apache-2.0), Gemini CLI (Apache-2.0), OpenCode (MIT), Aider (Apache-2.0).
How much do they cost?
Claude Code: Free plan; Pro $20/mo billed monthly ($17/mo annual); Max from $100/mo (Claude plans) (checked 2026-10-17). Pricing not yet verified for OpenAI Codex, Gemini CLI, OpenCode, Aider.
Are these rankings paid?
No. Rankings are never for sale. These are initial picks from verified features and pricing; hands-on test scores will be published after real test runs.