Meta Releases Muse Code Terminal Coding Agent Alongside Muse Spark 1.2

Meta released Muse Code, a terminal-based coding agent powered by its updated Muse Spark 1.2 model, on August 5, 2026 — capable of writing and debugging code, completing longer development tasks, and running multiple sub-agents concurrently. Days later, on August 10, Meta separately released Muse Glimmer, a smaller, 30-billion-parameter open-weight multimodal model combining language understanding with a dedicated perception encoder for visual input.

Two Different Products, Two Different Strategic Bets

• Muse Code targets the same terminal-based coding agent category as tools covered elsewhere on this site — a genuinely competitive, fast-moving space with multiple major labs now shipping dedicated coding agent products, not just general-purpose chat models
• Muse Glimmer's smaller, laptop-runnable size (versus Meta's larger flagship models) targets on-device and resource-constrained deployment specifically — a different use case than terminal coding agents, aimed at broader accessibility rather than peak capability
• Running multiple sub-agents concurrently in Muse Code reflects the same multi-agent orchestration pattern showing up across the industry — individual agents coordinating on sub-tasks rather than one agent handling an entire task sequentially