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All Boson APIs are usage-based and prepaid: you add credits, and usage draws down your balance. New accounts start with $10 in free trial credit. The canonical rate card, with interactive cost estimators, is at boson.ai/pricing. The rates below mirror it.

Higgs Realtime

Token-billed; the per-minute figures are estimates reflecting common usage — actual cost is calculated from tokens consumed.

Higgs TTS 3

Characters are counted on the text you send, before normalization, and control tags don’t count.

Higgs Avatar

Usage estimates exclude applicable taxes.

Next steps

Set up your account

Create an account, claim your free credit, and make a first call.

Usage & limits

Track spend and set a monthly cap.