OpenCode is a fully open-source (MIT-licensed) AI coding agent built by the team behind SST. It connects to 75+ model providers — Claude, GPT, Gemini, DeepSeek, or local models via Ollama — so you control cost and model choice instead of being locked to one vendor. Standout features include LSP-aware diagnostics fed back to the model, background subagents, a research-focused Scout agent, and fully air-gapped deployment for regulated environments. With 160,000+ GitHub stars and 7.5 million monthly developers, it's the most-adopted open-source coding agent built to date.
Best for
Developers who want a free, open-source coding agent that works with any AI model, including local ones.
Tags
open-sourceterminalmodel-agnosticfreecliself-hosted
