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After spooking Trump into safety testing, Anthropic AI models get global release

Ars Technica · yesterday Cached

The US lifts export curbs on Anthropic's advanced AI models Fable 5 and Mythos 5, allowing global release after safety testing and coordination with the government to address national security concerns.

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#claude-mythos-5

Initial impressions of Claude Fable 5

Simon Willison's Blog · 2026-06-09 Cached

Claude Fable 5 and Claude Mythos 5 have been released by Anthropic, offering a 1 million token context window and doubled pricing compared to Opus 4.8. Fable 5 includes strict safety guardrails, while Mythos 5 lacks them. Initial impressions describe it as a powerful and capable model.

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