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15 June 2026

The best AI model on the market lasted three days before the USA government pulled it

On 9 June, Anthropic released a model called Claude Fable 5 and described it as the most capable AI it had ever made available to the public. By 12 June it was gone and had been switched off for everyone, after the US government told Anthropic to take it down. If any part of how you run your store leans on AI tools, the speed of that is worth understanding a little more.

Fable 5 was the public version of a more powerful model Anthropic had been keeping back, called Mythos. The pitch was simple enough. To take the most capable system they had, wrap it in safety controls that quietly hand off the riskier requests to a weaker model, and let anyone use what was left. It topped nearly every benchmark going, and for a short window it was included free for people on Anthropic’s paid subscription plans before moving over to usage credits. For a few days it was the thing everyone in the AI world was talking about.

People found real uses for it quickly, mostly around code and automation. Stripe, the payments company, said it ran a job across a 50 million line codebase in a single day that would have taken a team more than two months by hand. That is the sort of result that makes a business reorganise its workflow around a tool, fast.

Then on the Friday evening, Anthropic received a directive from the US government. It was an export control order, the kind normally used to stop computer chips reaching certain countries, except this time it was aimed at the AI model itself. The order told Anthropic to suspend all access to Fable 5 (and its restricted sibling Mythos 5) by any foreign national, anywhere in the world, including Anthropic’s own staff who weren’t US citizens. The only way to comply with something that broad was to disable both models entirely, for every customer, everywhere. So that is what they did.

This is where it gets less dramatic than the headlines suggest, and worth getting right. The government cited national security but didn’t spell out the concern. Anthropic’s own reading is that someone found a way to bypass Fable’s safety controls and use it to spot software vulnerabilities. Anthropic says it looked at the demonstration, found the vulnerabilities were minor and already known, and pointed out that other freely available AI models can find the same ones without any clever workaround. In short, the company complied with the order but thinks it was the wrong call. There is also history here. Anthropic and the current US administration have been at odds for a while, including over Anthropic refusing to let its models run autonomous weapons systems.

So why should a Shopify store owner care about a row between an AI company and The White House?

Because it is a clean example of something I keep banging on about. The most powerful, most talked about, free-to-use AI tool on the planet existed for seventy-two hours and then disappeared at the stroke of a pen, with no notice and nothing the people relying on it could do. Anyone who had spent those three days rebuilding a process around it was left stranded.

Now scale that down to your business. If your product descriptions, your ad copy, your customer replies or your store’s structure all flow through whatever AI tool happens to be newest and shiniest this month, you are building on ground that can shift without warning. Models get pulled. Pricing changes overnight. A tool you trust gets bought, broken, or quietly made worse. The store still has to sell tomorrow regardless.

None of this means avoid AI. I use it every day and it has made parts of this job much faster. It means treat it as a tool you control rather than a foundation you depend on. Keep your own copy, your own data and your own understanding of why your store is set up the way it is, so that when a tool vanishes (and they do), you lose a convenience and not your business.

That, more than any benchmark score, is the lesson worth taking from Fable’s very short life.

If you’ve already handed too much over to AI and you’re not sure what it changed or whether it did any damage, that’s exactly what my AI Recovery Diagnosis is for. I’ll go through your store, work out what’s helping and what’s quietly hurting you, and give you a plan to fix it.

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