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All of v2.1.173 Home All releases olderv2.1.172 v2.1.174newer
Claude Code v2.1.173

Fable model support

What

Added detection for a model whose name contains "fable" (case-insensitive), with adjusted response-suffix handling when that model is active.

Details
  • A new helper function identifies when the active model is "fable" by checking H.toLowerCase().includes("fable").
  • When a fable model is in use, the [1m] model-suffix token is stripped from responses rather than appended, matching how the model reports itself to the API.
  • This is internal plumbing that enables correct behavior for a new model; no user-facing command or flag change is required.
Evidence

New fable detector (search for "fable"); response-suffix logic updated (the g7 model-name formatter gains a new early-return branch for fable+[1m])

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.173 →