Claude Fable 5 finished an 8 week Stripe migration in days.
A senior engineer dropped the full legacy codebase Tuesday.
Two months of team work vanished.
The model shipped as the new flagship. One tier above Opus.
Ask it about cyber, biology, or chemistry. It stays silent. Routes you quietly to Opus 4.8.
That safety trip-wire hits 5% of sessions by design.
The real version is Mythos 5.
It ships only to US government cyber defenders.
Anthropic calls it the strongest cyber model on Earth.
Price starts at $10 per million tokens. Half the old rate.
It runs free on Pro and Max until June 22.
Anthropic built the most powerful AI possible. Then gave the world the safe one.
The unrestricted beast stays locked away.
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