What it feels like to work with Mythos
Ethan Mollick,
One Useful Thing,
Jun 09, 2026
How good is the newest Claude model (known to the world as Mythos, but named Fable for some reason)? "In experiment after experiment I conducted, it outperformed basically every other public model I have used by a considerable margin. It was capable across many problems and produced some startling results — it would work up to a dozen hours executing on multi-page specifications." When (and if) it becomes available to me I'll follow up with my own assessment.
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