Originally published on AI Tech Connect.
What Meta actually shipped Muse Code entered beta on 5 August 2026, from Meta Superintelligence Labs. It is a terminal coding agent for macOS and Linux, installed with a single shell command. It runs on Muse Spark 1.2, and plans, implements and validates multi-file changes across large repositories. The architectural signature is persistence: asynchronous background subagents that stay alive for the whole session rather than spawning per task, fanned out in parallel into isolated git worktrees. Approvals and an operating-system sandbox are on by default, rather than being an opt-in hardening step. Pricing, as of 6 August 2026: US$1.25 per million input tokens, US$4.25 per million output, US$0.15 per million cached input. All prices in this article are US dollars. Pay as you go. No seat…
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