OpenCode: The Open Source Coding Agent That Doesn't Lock You In 🔓
OpenCode is an open-source coding agent built in Go by the SST team that separates the agent harness from the model, supporting 75+ LLM providers including local models via Ollama. It surpassed Claude Code on GitHub stars (160K+ vs 122K+) and offers a client/server architecture driving terminal, desktop, and IDE extensions. Anthropic's January 2026 OAuth policy change blocked OpenCode from authenticating through Claude.ai accounts, shifting the value proposition from cost savings to philosophical choice between managed and open tools.