OpenCode

Since our last Radar, OpenCode remains one of the most prominent open-source coding agent harnesses. We’ve seen its adoption grow significantly alongside the rise of capable open-weight models. Teams appreciate its customizability and headless/server mode, which make it an attractive foundation for organizations building an enterprise harness. On the downside, its session-sharing and collaboration capabilities still lag behind competing harnesses. OpenCode has become a popular choice for teams pairing coding agents with self-hosted, open-weight models and local coding models, but we still recommend evaluating emerging alternatives such as Pi.

OpenCode has quickly become one of the most prominent open-source coding agents, with a strong terminal-first experience. A major strength is model flexibility: it supports hosted frontier models, self-hosted endpoints and local models. This makes OpenCode attractive for cost control, customization and restricted environments including air-gapped setups. It also means users need to be explicit about licensing and provider terms when using subscriptions or APIs.

OpenCode’s extension model is another key part of its appeal, supporting both plugins and MCP integrations for team-specific workflows, tools and guardrails. Many users leverage on Oh My OpenCode, an optional but popular harness that provides a more opinionated, batteries-included setup with coordinated agent teams and richer orchestration patterns.