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Updated , rescanned every two hoursWednesday, November 11, 2026

875 points607 comments

Anthropic launches Claude Fable 5.2 and Mythos 5.2

Claude Fable 5.2 and Mythos 5.2: preview

What is Claude Fable 5.2 and Mythos 5.2?

Claude Fable 5.2 and Claude Mythos 5.2 are upgraded AI models built for tough technical work like coding, finance, science, and vision. They run up to 30% faster than the previous versions and cost $8 per million input tokens and $40 per million output tokens.

Who it is for

Developers and researchers who need a high-performance, low-latency assistant for complex problem solving should test the new models.

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The story so far

Early Signal first spotted Claude Fable 5.2 and Mythos 5.2 on November 10, 2026, with 875 points. On its busiest day it gained 9 points.

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