Meta enters the AI coding wars with Muse Spark 1.2 and Muse Code with persistent async background agents

Meta released Muse Code, a terminal-based AI coding agent in beta, alongside Muse Spark 1.2, a coding-focused frontier model update. The tool can plan changes, write code, and validate results across large repositories, using persistent background agents and parallel workflows, but requires a Meta account and billing details.

Meta is moving from open-weight model distribution toward a more integrated, proprietary developer product strategy. The launch intensifies competition in agentic coding as major AI labs race to own the workflow where developers increasingly delegate full software engineering tasks to AI systems.