muse code - meta's terminal coding agent on muse spark 1.2
About Muse Code
Meta's terminal coding agent, in beta since August 2026 and powered by the Muse Spark 1.2 model with a one-million-token context window. Billing is per token rather than per seat, and the pricing carries an unusual choice: a contributor tier costs a fraction of the standard one because your data is used for product improvement. Multiple agents coordinate on a task and every action is meant to be traceable.
Muse Code interface preview
Key Capabilities
One-million-token context window on Muse Spark 1.2
Terminal agent, installed with a single curl command
Multiple agents coordinate on every task
Per-token billing rather than a per-seat subscription
A cheaper contributor tier, priced explicitly against your data being used for product improvement
Every action is presented as transparent and traceable
Standout Features
Your Data Has a Published Price
Two tiers run the same model. The contributor tier is far cheaper because your data is used for product improvement, which makes the trade explicit rather than buried in terms.
One Million Token Context
Muse Spark 1.2 carries a one-million-token context window, aimed at reasoning across a large repository rather than a handful of files.
Single-Command Install
Installs from the terminal with one curl command and runs as a terminal agent rather than an editor extension.
Perfect for
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