Meta debuts Muse Code, its first AI coding agent

The CLI agent scores 59% on DeepSWE 1.1, beating Grok Build 4.5 and Gemini 3.6 Flash, with a contributor tier at $0.20 per million output tokens. Powered by the coding-focused Muse Spark 1.2, it plans changes, uses tools, runs parallel sub-agents, and validates results.

Featured · Mark Zuckerberg