A single ban, three phone calls, an out-of-control narrative: Anthropic’s Darkest 24 Hours
2026-06-15 03:30
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Amazon’s Position in This is Delicate
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- Core Thesis: The U.S. Department of Commerce, based on findings that Anthropic's latest models, Fable 5 and Mythos 5, had circumventable safety guardrails, used export controls to force them offline. This incident exposes the complex and conflicting interests between AI companies, the government, and cloud providers, elevating model safety from a technical process to a matter of national security management.
- Key Elements:
- The direct trigger for the takedown was Amazon's CEO reporting to the White House that Fable 5’s safety guardrails could be bypassed, potentially enabling cyberattacks.
- Anthropic’s CEO attempted to explain this as a specific vulnerability rather than a universal jailbreak, but the White House, based on an NSA assessment, did not accept this interpretation.
- Amazon is both Anthropic's largest investor ($8 billion) and cloud service provider, while also simultaneously negotiating a potential $50 billion investment in OpenAI, creating a clear conflict of interest.
- This conflict is not the first; in March, the Pentagon listed Anthropic as a supply chain risk after the company refused to allow its models to be used for surveillance and autonomous weapons.
- The White House believes that Anthropic previously compared its own technology’s risk to that of nuclear weapons but refused to take a model offline due to known vulnerabilities, viewing this as a matter of attitude.
- With the model offline, OpenAI's relative competitive position has improved, giving Amazon more flexibility in its hedging investment strategy against Anthropic.
On June 13, the US government pressed pause on two of Anthropic's most advanced models.
One is Fable 5, and the other is Mythos 5. The former had just been publicly released, while the latter was targeted at more restricted cybersecurity customers. The ban came from the US Department of Commerce, covering clients outside the US as well as foreign nationals within the United States. Anthropic's final choice was simple: take them all offline.
After reviewing all the details about this incident, we've roughly reconstructed the timeline of those 24 hours.
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