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Corbin Crutchley
crutchcorn.dev
did:plc:x47ddi454a4x2j4mu5pmtuyc
Claude Mythos is GA!... Kinda.
https://www.anthropic.com/news/claude-fable-5-mythos-5
They just announced Fable 5, a "Mythos class" model.
It scores 80.3% on SWE bench vs Opus' 69.2%...
The catch is that it's 2x the cost of Opus 5.8.
2026-06-09T17:54:11.062Z