Claude Fable 5.2 fast mode costs $16 per million input tokens

Fast mode delivers up to 2.5x higher output tokens per second, at $16 USD per MTok of input and $80 USD per MTok of output. Requests opt in by setting speed to fast.

Who is affected:

Developers who need faster output pay a higher rate than standard Claude Fable 5.2 pricing.

Suggested next step:

Set speed to fast only on requests where faster output is worth the higher rate.