All models
Anthropic: Claude Fable 5.5
Coming soonProvisional ID
The next version of Anthropic's top Fable line, not released yet. When it ships, your TeamoRouter key works as is: just switch the model ID. Use Claude Fable 5.1 in the meantime.
Status
Not released yet
Official price (in / out)
Not announced
Context
Not announced
Released
Not announced
What we know
- Not released: no date, model ID or price yet.
- In mid-October it was reported to be with Anthropic's partners for testing.
- The newest Fable today is Claude Fable 5.1, released September 1.
Until it's out, use these two
Same key, just switch the model ID.
Claude Opus 5.5
claude-opus-5-5
Anthropic's suggested starting point for most coding, cheaper than Fable.
Background and sources
- October 13: a Fable 5.5 entry briefly appeared in Azure's model catalog and in LiteLLM, and was removed a day later (per TestingCatalog).
- October 17: TestingCatalog reported it might ship the following week. As of November 3 it hasn't.
Sources
- Claude docs: models overview (newest Fable is Fable 5.1)
- Claude docs: release notes (Fable 5.1 launched Sep 1, 2026)
- TestingCatalog: Fable 5.5 reportedly reaches partners (Oct 17, 2026)
Full write-up: Claude Fable 5.5