Naming tables list Opus 4.8, Sonnet 5, Fable 5 and Mythos 5 with aliases.
These are naming and alias tables only, and two task-model maps disagree with each other.
What's wrong with this entry?
The family and version table now lists opus 4.8, sonnet 5, fable 5 and mythos 5; display names gain "Fable"; and aliases map fable-5, mythos-5 and opus-5 to full ids. These are naming tables, not availability. Two task-model maps in the same build disagree, one selecting Opus 5 where the other selects Opus 4.8.
["fable-5", "claude-fable-5"]
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
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v2.1.234
Search field in the model picker
Both mention model
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v2.1.236
Cancellable waits when
/modeltalks to a cloud sessionBoth mention model
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v2.1.238
Model and effort switch warning now checks whether the cache is actually warm
Both mention model