TL;DR: OpenCode is A-tier for coding agents: The best open-source pick if you want to choose your own model.

OpenCode A

Open-source terminal coding agent that works with many model providers.

Use case
Coding agents
Tier
A
Website
https://opencode.ai
Last checked

Why A-tier

The best open-source pick if you want to choose your own model.

Alternatives in Coding agents

Other tier lists

AI IDEs & editors · App builders · Design-to-code & UI · Backend, database & auth · Deployment & hosting · LLM APIs & routers · Agent frameworks & MCP · Voice, audio & media · Game dev & 3D