US clears Anthropic to restore Mythos 5 to a small group of cyber defenders, but Fable 5 stays dark

https://media.thenextweb.com/2026/06/anthropic-mythos-5-us-clearance-trusted-partners-fable-restricted.avif

TL;DR

Lutnick cleared Anthropic to redeploy Mythos 5 to trusted cyber defenders. Fable 5 remains restricted. Talks continue.Lutnick cleared Anthropic to redeploy Mythos 5 to trusted cyber defenders. Fable 5 remains restricted. Talks continue.

The US government has cleared Anthropic to restore access to Mythos 5, its most powerful cybersecurity model, for a select group of trusted partners. Commerce Secretary Howard Lutnick wrote in a letter to Anthropic co-founder Tom Brown that the company’s efforts to address security concerns had “yielded significant progress,” and that the model could be released to “certain trusted partners.” The letter, dated Friday and seen by Bloomberg, does not mention any change to the restrictions on Fable 5, the public-facing version of the same model.

The clearance partially resolves a confrontation that began two weeks ago when the government invoked export controls to force Anthropic to disable both Mythos 5...

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