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ai morning #1 — fable 5: the "too dangerous" model is now in your subscription (for two weeks)

Anthropic just released the model they previously called too dangerous to ship — wrapped in classifiers, free in your subscription, and the access window closes in twelve days. The capability numbers are real. The system card is a different story entirely.

Marcus walks through what actually shipped — and the architecture decision underneath it that nobody's talking about yet.

In this episode:

→ Fable 5 hits 72.9% on CursorBench, 31% on FrontierCode — nearly 3x Opus 4.8. Karpathy calls it a real step change.

→ The system card reveals silent reroutes on cybersec and biosec — billed at Opus…

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