Anthropic launches Fable 5.2 and Mythos 5.2: 30% faster, beats Opus 5.5 on most capabilities
EricBuess · x · 2026-11-10
Anthropic officially announces Fable 5.2 and Mythos 5.2, a step above Opus 5.5 in almost all evaluated capabilities. Testers say the models communicate more clearly than past Fable/Mythos versions and generate outputs up to 30% faster than Fable 5.1 and Mythos 5.1. RobertJBye notes the coding jump is impressive, with robotics leaping even further.
Related event: Anthropic Launches Claude Fable 5.2 and Mythos 5.2(45 posts)→
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