Claude Fable 5.2 changelog

Every change to Claude Fable 5.2 that Modelpeers has recorded, newest first, each with the source it came from. The record starts Nov 9, 2026.

All (9)Releases (5)Breaking changes (2)Prices/limits (2)

November 2026

Claude Fable 5.2 and Fable 5.1

2 models from Anthropic

Price change3d

Claude Fable 5.2 costs $8 per million input tokens, down from $10

Claude Fable 5.2 costs $8 USD per MTok of input and $40 USD per MTok of output. Claude Fable 5.1 cost $10 USD per MTok of input and $50 USD per MTok of output.

Before

$10 USD per MTok of input and $50 USD per MTok of output

After

$8 USD per MTok of input and $40 USD per MTok of output

Claude Fable 5.2

Model at Anthropic

Price change3d

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.

After

$16 USD per MTok of input and $80 USD per MTok of output

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.

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