The Deploy Log | Models and APIs
Muse Spark 1.3
Two prices for the same model and the same 1M context window: $0.10 per million input on the contributor tier, where your inputs improve Meta's products, and $1.25 on the standard tier, where they do not.
The call on this one
What shipped is free. The call on it, what to do about it and the condition on that, opens with a signup: free, no card, every edition in full.
It becomes $50 a year, and signing up now keeps your first year free.