Meta[1][6] AI Research's post 'Introducing Muse Code and Muse Spark 1.2' is dated August 5, 2026 and says the model 'is available today in Muse Code and in Meta Model API'; Artificial Analysis[5] and OpenRouter[7] carry the same day.
Meta releases Muse Spark 1.2, a coding-focused update to Muse Spark 1.1 co-trained with the new Muse Code terminal agent, at an unchanged $1.25 per 1 million input tokens and $4.25 per 1 million output tokens; it scores 54 on the Artificial Analysis Intelligence Index.