Meta released Muse Code (beta), a terminal-based coding agent, on Wednesday. Muse Code trails Opus 5 but adds a crash-safe logMuse Code is powered by Muse Spark 1.2, an update to the coding model Meta opened up to U.S. developers in July. Muse Spark 1.2 lags behind Opus 5 on the coding benchmarks Meta presented but outperforms Codex and Antigravity on most of them. Muse Code maintains a local event log that records all model calls, tool runs, approvals, and edits. Muse Spark 1.2 is also available via the Meta Model API.