OpenCode
Coding agents · Open Code
A free, open-source coding agent that runs in the terminal; there is also a desktop app and IDE extensions. You pick the model: Claude, GPT, Gemini and dozens of others through an API, or a local one; you pay only the model provider. Modes: Build edits code, Plan only plans and does not change files. It reads project rules from AGENTS.md, and the /init command creates that file from the repo.