Anthropic ships Fable 5.2 test checkpoint, hints at newer Opus and Sonnet in the wings

legit_api · x · 2026-11-10

Anthropic has released Fable 5.2, described as the oldest of the few checkpoints recently made available for testing — implying the company is sitting on much more interesting unreleased models, including newer Fable, Opus, and Sonnet versions.

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