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Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5

232 pointsby Pragmatayesterday at 11:55 PM90 commentsview on HN

Comments

drevil-v2today at 12:36 AM

The damage is done. You cannot build a business critical function on top of American SOTA frontier model. Especially not with the current crew in charge.

Now whether AI tech is in the same league as say Nuclear tech and therefore by any reasonable standard should be regulated is a different question.

We hit the slippery slope on a random day in June 2026 and there is no putting the genie back in the bottle. Any exec or manager that puts load bearing weight on top of Anthropic/OpenAI/Google/AmericanCorp frontier model deserves the stress.

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nlhyesterday at 11:59 PM

Here's a copy of the letter that Commerce sent to Anthropic (note who it'a NOT addressed to...)

Source: https://x.com/AndrewCurran_/status/2072103733715194048?s=20

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June 30, 2026

Tom Brown Chief Compute Officer Anthropic 548 Market Street San Francisco, CA 94104

Dear Mr. Brown:

Since the issuance of my previous letters, dated June 12, 2026 and June 26, 2026, Anthropic has taken steps in close coordination with the U.S. government to address the risks associated with Claude Mythos 5 and Claude Fable 5. Among other things, Anthropic has agreed to proactively detect and address security risks associated with the models; to work diligently with the U.S. government on protocols and standards and releases for Mythos, Fable, and future models; and to inform the U.S. government of any malicious activity.

In light of these actions and commitments, as well as the Bureau of Industry and Security's evaluation of the diversion risks now presented by Claude Mythos 5 and Claude Fable 5, the controls in the June 12 letter are withdrawn. A license is no longer required for the export, reexport, or in-country transfer, including deemed export or deemed reexport, of the Mythos or Fable models.

Commerce reserves the right to reevaluate the decisions made in this letter and the necessity of reimposing a license requirement, should circumstances change or should Anthropic fail to adhere to its commitments.

If you have any questions about this letter, please contact me or the Under Secretary of Commerce for Industry and Security, Jeffrey Kessler, at (202) 255-1864.

Sincerely,

Howard W. Lutnick

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dzongatoday at 12:47 AM

Chinese models brought the building down.

are export controls the right thing ? Probably not.

but the american economy is over-exposed on "A.I" - the capital expenditure, while the Chinese are proving you don't need to spend tons of capital to get close to the frontier.

the Chinese have better building capacity & cheaper energy. that means the market has to correct at some point.

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nickvtoday at 1:13 AM

I bet you that nothing changed with how Fable 5 is run.

"Anthropic has agreed to proactively detect and address security risks associated with the models" LOL, this was already happening.

This clown car administration just keeps making shit up and then backpedalling in a way that just leaves everything worse.

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neloxtoday at 12:27 AM

> We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5.

We'll begin restoring access tomorrow, and will share an update soon.

We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models.

https://x.com/anthropicai/status/2072106151890809341?s=46

avaertoday at 12:11 AM

I shudder to think what the definition of "malicious activity" is that they will be reporting to the government. Speech has been severely chilled the last couple of years.

It's nice that the restriction is going to get lifted but I hope this doesn't make anyone complacent that their coding work is going to be scrutinized by the US government, with AI, when using these models.

gowthamsaiyadavtoday at 1:13 AM

My only hope is that they don't overdo the guardrails. Claude's been one of the best coding models, and it'd be nice if it stayed that way for real and legitimate developer workflows.

Pragmatayesterday at 11:55 PM

>We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5.

>We'll begin restoring access tomorrow, and will share an update soon.

>We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models.

From Anthropic on Twitter

stavarottitoday at 12:56 AM

I just finished reading Incorruptible and a central theme (Anthropic is a case study) is that trust is singularly the most important currency a business has. The past few weeks have done wonders for Anthropic’s marketing but just as much if not more damage to the trust factor. Businesses will continue to use Anthropic because it’s the default and accessible where it matters (AWS, Azure, GCP, Databricks, Snowflake, etc). But the trust factor has dropped. It’ll be interesting to see if they can turn the tide. Maybe Fable will be too awesome for people to care about the past few weeks?

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mateenahtoday at 12:26 AM

I wonder if it's still good

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woggytoday at 12:39 AM

Hopefully GPT 5.6 soon

Sabinustoday at 12:26 AM

The classic chaotic governance model and creation of an uncertain business environment by the Trump admin in the most important industry for the US economy.

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tinypaktoday at 12:45 AM

I see, so that explains why people are starting to talk about Claude Fable 5 and how I'm now going to have to buy $6,000 of compute for our startup

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HDBaseTtoday at 12:32 AM

The question is how lobotomized will it be now?

matheusmoreiratoday at 12:24 AM

Good to hear. I was going to cancel my subscription if I couldn't use Fable. No point in paying Anthropic to train models I can't use.

poopyscoopytoday at 1:04 AM

Debating if I should re-sub to the Max plan now (in case they grandfather people in some how) or if I should just wait and see what they announce.

natchtoday at 12:18 AM

They need Lehane or… since OpenAI got him, what is Fabiani up to these days?

fmdvtoday at 12:37 AM

Fable was (is) a major leap forward for my development tasks. The quality of the model compared to Opus 4.8 (when I last used it before the ban hammer) was night and day. Fable single-shotting complex and complete applications was a beautiful thing and I can't wait to get back to developing with it.

All aboard the hype train!

vlian2088today at 1:12 AM

>Anthropic has taken steps in close coordination with the U.S. government to address the risks associated with Claude Mythos 5 and Claude Fable 5. Among other things, Anthropic has agreed to proactively detect and address security risks associated with the models; to work diligently with the U.S. government on protocols and standards and releases for Mythos, Fable, and future models; and to inform the U.S. government of any malicious activity.

ah, I see. so, Chinese models are getting banned soon.

Sabinustoday at 12:02 AM

Chaotic governance model and uncertain business environment by the Trump admin as usual.

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tjohnelltoday at 12:25 AM

Who knows - this could be the last model we see from Anthropic. Or it just becomes the wild west and we figure it out as we go.

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Havoctoday at 12:57 AM

So much for way too dangerous end of the world

laidoffamazontoday at 12:58 AM

So how much did they have to donate to the MAGA PAC for this one?

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unchockedtoday at 12:32 AM

w00t

tamimiotoday at 12:31 AM

So after this publicity they got, they will release a locked down version of the models, did I get that right?

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colesantiagoyesterday at 11:58 PM

This is great news,

I'm sure many teams couldn't do their best work because Claude Fable 5 was unavailable.

I wonder what their hiring pages look like now, are they starting to remove job postings?

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