GoKawiilAnthropic confirmed tonight that it has disabled access to Claude Fable 5 and Claude Mythos 5 to all customers, following an export control directive from the US government. Here are the details.
A bit of context
Earlier this week, Anthropic launched Claude Mythos 5 and Claude Fable 5.
Both models stemmed from Claude Mythos Preview, a highly advanced model intended for security research, which was capable of finding security bugs and flaws.
Access to Mythos Preview was initially limited to a small group of companies and research partners through Project Glasswing. In the weeks that followed, participants reported identifying and fixing numerous security issues with the model’s help. Mozilla alone said it resolved hundreds of vulnerabilities as a direct result of using Mythos Preview.
When Anthropic unveiled Claude Mythos 5 and Claude Fable 5 this week, the company said the Mythos family would remain restricted to Project Glasswing participants, while Fable would be made publicly available.
Fable included several guardrails and restrictions intended to curb misuse, some of which drew heavy criticism. Since launch, Anthropic has been adjusting its safety measures to try to strike the right balance between safety and usability.
Anthropic pulls Fable 5 and Mythos 5
Earlier tonight, however, Axios reported that Commerce Secretary Howard Lutnick had “sent a letter to Anthropic CEO Dario Amodei saying that the Mythos 5 and Fable 5 models would be subject to export controls to any location outside of the U.S. and to all foreign persons within the country.”
From Axios:
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