Introducing Muse Code and Muse Spark 1.2
Meta tied its coding model update to a new agent, with a steep discount for users who allow data use.
Willison highlights Muse Spark 1.2 as a coding-focused update with stronger code generation, debugging, codebase understanding, and long-horizon repo work. Meta co-trained it with Muse Code, its coding agent, to improve paired performance and tool compatibility. The pricing split is the sharpest detail: `muse-spark-1.2` is $1.25/million input and $4.25/million output, while the data-contributor version is $0.10/$0.20. Willison also notes a small but material improvement in the model’s pelican-riding-a-bicycle SVG test. Simon Willison's note
Willison highlights Muse Spark 1.2 as a coding-focused update with stronger code generation, debugging, codebase understanding, and long-horizon repo work. Meta co-trained it with Muse Code, its coding agent, to improve paired performance and tool compatibility. The pricing split is the sharpest detail: `muse-spark-1.2` is $1.25/million input and $4.25/million output, while the data-contributor version is $0.10/$0.20. Willison also notes a small but material improvement in the model’s pelican-riding-a-bicycle SVG test. Simon Willison's note
score 7