Developers curious about Meta's coding agent can install it, but subscription prices only appear at signup and regional availability varies.

Kenning's take

What it does

Muse Code is a command-line coding agent from Meta that works across large code repositories, planning changes, writing code and checking the results. It runs persistent background agents alongside the main agent, keeps a replayable log so it can resume after a crash, and ships with skills such as /plan and /goal. It launched in beta in August 2026 and left beta on 31 August with workflows, rewind and an SDK preview.

• Terminal coding agent tuned with Muse Spark
• Persistent background subagents
• Workflows that run teams of subagents in parallel
• Rewind to an earlier point in a session
• Bundled /plan, /grill and /goal skills
• TypeScript SDK in developer preview

Who it suits. Software developers who want an AI coding agent in the terminal built on Meta's models.

Key facts

Category

Developer tools

Part of

Meta AI

Made by

Meta

Released

5 August 2026

How to get it

install with curl -fsSL https://dev.meta.ai/install.sh | bash and sign in with a Meta Model API account; pay per token or take a monthly subscription

Works on

macOS, Linux, Windows

API price

pay-as-you-go: Muse Spark $1.25 per million input tokens, $4.25 per million output

Pricing

Plan	Price	Billed
Everyday Usage	Not stated unknown	month
High Usage	Not stated unknown	month
Power Usage	Not stated unknown	month

source

FAQ

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.