Fable only starts thinking at 320 chars, still miscounts short passages in letter test

maksym_andr · x · 2026-09-18

Part 2 of maksymandr's letter-counting evaluation: Fable 5.1 only engages reasoning tokens on inputs of roughly 320+ characters, yet frequently miscounts even 20-character passages—thinking would have improved accuracy, exposing a failure in its adaptive thinking mechanism.

Related event: Letter-counting tests expose Fable 5.1 false safety triggers and poor token efficiency(5 posts)→

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