According to TheRundownAI, Sakana AI’s Fugu Ultra uses multi agent orchestration to match Fable and Mythos on several benchmarks.

According to emollick, GLM5.2 Max nails constraints, while Fable elevates style by theming vanishing vowels in a six‑stanza poem challenge.

According to @emollick, Opus 4.8 completed Fable’s Borges Library of Babel sim with multiplayer ghosts and searchable volumes like GPT1 weights.

According to TheRundownAI, Anthropic suspended Fable and Mythos access after a US export control order citing jailbreak risks, affecting foreign nationals.

According to @emollick, Claude Code with Fable rebuilt SimRefinery from screenshots into a fully playable version with learning mode and upgrades.

According to TheRundownAI, Bezos proposes a $12B AI general engineer, Fable faces researcher pushback, and new tools target content and sports.

According to emollick, Fable built a poetic art game of Rilke’s Duino Elegies, mixing its translation with A. S. Kline’s version for mood fidelity.

According to emollick, Anthropic walked back a controversial Fable guardrail policy, easing restrictions on model outputs, as cited by simonw.

According to @godofprompt, a one-shot prompt tested Claude Opus 4.8 vs Fable 5 on a full chess app with rules, AI levels, and animations.