How Fable 5 And Mythos 5 Change AI Security, Data Retention, And Vendor Risk

Anthropic’s Fable 5 and Mythos 5 is the most 2026 product launch you’ll read this year. The same model can find nation-state zero days, design novel drug candidates, and play FireRed on a Gameboy Advance with nothing but screenshots. And for the gaming fans out there, yes, we got Fable 5 before Fable 4.