Command Code ships Muse Spark 1.3 Max with new reasoning effort parameter

alexandr_wang · x · 2026-09-08

Muse Spark 1.3 Max is now live in Command Code, billed as frontier-level performance with a new reasoning effort parameter for harder problems. Users can switch via /model, pick Muse Spark 1.3, and set reasoning effort to max. Alexandr Wang shared the launch, saying 'try this puppy out'.

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