Azure API listing leaks unannounced claude-fable-5.5 with specs copied from 5.1

heypearlai · x · 2026-10-15

On Oct 13, claude-fable-5-5 appeared in a LiteLLM model list, added by a bot syncing Azure's Models API: the Azure (eastus2) entry lists it as Anthropic version 1, lifecycleStatus GenerallyAvailable, with a 2027-12-05 deprecation date.

The merged PR screenshot shows every spec in the row (token pricing, context, capability flags) is inherited from Fable 5.1 — no official source (Anthropic pricing page, model overview, Bedrock, Vertex, OpenRouter) has any Fable 5.5 entry or unique specs.

Nothing is official yet; the poster expects an announcement and is watching Anthropic's page. (Unverified leak.)

Related event: Unreleased Claude Fable 5.5 Surfaces Early in Azure Model Catalog(10 posts)→

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