Command line tools
Tools you run from a terminal. Scriptable, easy to put in a pipeline, and usually the fastest way to find out whether an idea works.
Aider
A terminal pair programmer that edits files straight in your working tree and commits each change with a generated message. No copy-paste loop.
Tested on Claude Sonnet · Jun 2026
Claude Code
The Anthropic terminal agent for coding. It reads a CLAUDE.md file at the start of every session, so project rules do not have to be repeated in each…
Tested on Claude Sonnet · Jun 2026
Codex CLI
The OpenAI terminal coding agent. It reads a repository, plans a change and runs commands in a sandbox, and by default asks your approval before…
Tested on GPT-5 · Jun 2026
Ollama
The easiest way to get a local model answering on your own machine. One command installs it, one pulls a model, and an API appears on localhost that…
Tested on Llama 3.3 70B · May 2026