Meta released Muse Code, a coding assistant that runs in a developer's terminal, alongside a new model called Muse Spark 1.2 that is tuned for writing and debugging code across large codebases. The agent keeps helper processes running for the length of a session and logs every step so it can resume after a crash. Muse Code is in beta and installs only on macOS or Linux; the model is also available through Meta's Model API.
What changed
Muse Spark 1.1 was the current model and Meta had no terminal-based coding agent of its own.
What it unlocks
Running a Meta coding agent in the terminal that keeps helper agents alive through a session and resumes long tasks after a crash.
- 1,000+ tool calls, up to 24 hours
- macOS and Linux install
What you need to act on it
- macOS or Linux
- install via command line
- beta access
- Meta Model API key for API use
- research.meta.ai2026-08-05