Fable 5 / Anthropic and US Gorvernment: How AI Export Controls Just Sorted Builders by Passport (A Pesonal Take) | by Reza Rezvani | Jun, 2026 | MediumSitemapOpen in appSign up<br>Sign in

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Fable 5 / Anthropic and US Gorvernment: How AI Export Controls Just Sorted Builders by Passport (A Pesonal Take)

A Friday directive cut every foreign national off from Claude Fable 5 mid-session. After forty years of being asked to justify belonging, I recognized the reflex on sight.

Reza Rezvani

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I do not usually write this kind of piece. I am not a political person, and I have spent very little of my life arguing about governments. My lane is building. Give me a hard problem and a good tool and I am content for a week.<br>Press enter or click to view image in full size

Illustration by the author (AI-generated, GPT Pro). © Alireza RezvaniWhat I do hold, and have held for as long as I can remember, is a conviction about technology itself. Technology is meant to help people achieve more and live better, and the closer we come to putting it in everyone’s hands, the better that bargain gets. Knowledge wants to be shared. That is not a slogan to me.<br>It is the thing that built civilizations, that carried us from one good idea in medicine or science or engineering to the next, each generation standing on the open work of the one before.<br>AI is the most powerful version of that machinery we have ever made, which is exactly the reason access to it should be widening.

“Don’t be evil” has been a quiet mantra of mine for years.<br>Not as a company’s tagline, but as a compass: build things that help, keep the ethics in front of the engineering, and do not pull the ladder up behind you.<br>So it takes something specific to pull me out of my usual lane. A few nights ago, something did.<br>It was late, and Claude Code was working on my core.<br>I had a session running on a product I am building. Claude Code was inside the codebase, the Agent SDK part of the system, and the model I had selected was Fable 5. I was relying on it completely. Not as a novelty I was kicking the tires on. As the thing doing real work while I steered.<br>Then, in the middle of the session, it broke. Not an error I recognized. Not a timeout I could retry my way past. The work simply stopped.<br>My first assumption was the ordinary one: something on my side. A bad config, an expired token, a wrong endpoint. When that came up clean, I assumed it was infrastructure on Anthropic’s side, the kind of outage that resolves itself in twenty minutes if you wait and finish your coffee.<br>It was neither. I went looking for the root cause, and the root cause was a letter.<br>What the letter actually said<br>On the evening of June 12, the United States government issued an export control directive to Anthropic, citing national security authorities. Commerce Secretary Howard Lutnick sent it to chief executive Dario Amodei, drafted with help from the Commerce Department’s Bureau of Industry and Security.<br>Anthropic received it at 5:21pm Eastern. The order instructed the company to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including Anthropic’s own foreign-national employees.<br>By the company’s own account, the letter did not provide specific details of the national security concern.<br>Read that scope again, because it is the whole story. The order did not restrict a capability. It did not name a country. It drew a line around a class of people, defined by the passport they hold. The line was so broad that Anthropic could not comply selectively. To honor it, the company had to switch off Fable 5 and Mythos 5 for every customer on the platform, citizen and foreigner alike.<br>Access to all other Anthropic models stayed up. Three days after shipping the most capable model it had ever released to the public, the company turned that model dark for everyone.<br>I want to be precise about who is in the frame here and who is not. Anthropic did not do this to me. Anthropic was handed a directive on a Friday evening and chose the only compliant path available, then said publicly that it believes the order is a misunderstanding and that it is working to restore access.<br>The company shipped Fable with classifiers built specifically to block the high-risk cyber capabilities of the underlying model.

It red-teamed those safeguards for thousands of hours with the US government, the UK AI Security Institute, and outside organizations before release. This piece is not an argument against the people who built the tool. It is an argument against the instrument that took it away.<br>The timeline is the story<br>Here is the part that turned my frustration into something colder.<br>Press enter or click to view image in full size

The ten-day gap between the voluntary order and the binding one. Illustration by the author (AI-generated, GPT Pro). © Alireza RezvaniTen days earlier, on June 2,...