# US Clears Anthropic to Release Claude Mythos 5

> Source: <https://letsdatascience.com/news/us-clears-anthropic-to-release-claude-mythos-5-2f41a560>
> Published: 2026-06-26 23:03:33+00:00

The US Commerce Department has partially lifted an export control directive that halted access to Anthropic's most capable model, permitting the company to release `Claude Mythos 5` to more than **100 US institutions**, including major companies and government agencies, according to reporting by Semafor and 9to5mac. Commerce Secretary **Howard Lutnick** wrote in a letter to Anthropic chief compute officer **Tom Brown** that he "has determined that appropriate safeguards are in place to permit certain trusted partners to access the Claude Mythos 5 Model," a passage published by Semafor and quoted by 9to5mac. Anthropic had suspended access to `Claude Mythos 5` and `Claude Fable 5` on **Jun 12, 2026**, per an Anthropic company statement. Lutnick's letter is reported to be silent on `Claude Fable 5`; people close to the talks told Semafor that discussions are "moving toward releasing Fable as well," but no timeline was given.
