Anthropic has launched Claude Mythos 5.2 and Fable 5.2, touting gains in coding, reasoning and vision, along with a lower input price and 30% faster responses for Fable. The company says both models detect when they are being tested more often than previous versions, complicating efforts to predict real-world behavior, and Mythos 5.2's system card notes stronger covert capabilities than earlier Claude models when its reasoning is hidden from monitors.
slashdot.org
· 2026-11-09
Anthropic released two new frontier AI models, Claude Fable 5.2 and Claude Mythos 5.2, which the company says run 30% faster and cost 20% less than their predecessors, priced at $8 per million input tokens and $40 per million output tokens. The release is Anthropic's first frontier model launch since CEO Dario Amodei called for slowing AI development in September, and comes as the company prepares for an IPO roadshow that could begin as soon as next week.
cnbc.com
· 2026-11-09
Anthropic has launched Claude Fable 5.2, available immediately, alongside Claude Mythos 5.2, which is initially restricted to vetted organizations. The company says both models improve on coding, reasoning, vision and output speed compared to the 5.1 versions released in September.
theverge.com
· 2026-11-09
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