Claude Fable 5.2 becomes Claude Code's default Fable model

What changed

Version 2.1.321 adds Claude Fable 5.2 (claude-fable-5-2) as the default Fable model, with a 1M-token context window. It is priced at $8 input and $40 output per million tokens, with cache reads at $0.20 per million. Saved Fable 5.1 picks move to fable right away on Pro and Max plans, and on Team and Enterprise once the organization allows it.

Who it affects

Claude Code users who pick Fable on Pro, Max, Team and Enterprise plans, and API users.

What to do

Update to 2.1.321 or later and check /model. To stay on the previous model, run /model claude-fable-5-1.

Source: https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#21321