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

https://twitter.com/AnthropicAI/status/2072106151890809341
205•Pragmata•1h ago

Comments

Pragmata•1h ago
>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

colesantiago•1h ago
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?

rocketpastsix•1h ago
there is no way Fable and Mythos had such an impact in such a short amount of time that people were hiring based on it.
colesantiago•31m ago
They certainly are now that the export ban is lifted.
esseph•22m ago
... Care to explain your thoughts on this?

I'm absolutely fascinated.

nlh•1h ago
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

-------

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of the diversion risks now presented by Claude Mythos 5 and Claude Fable 5, the controls in the June 12 letter are withdrawn.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

------

Jblx2•1h ago
For those who haven't been following this closely, who is the missing addressee?
nlh•1h ago
Dario Amodei (Anthropic's CEO) had previously been directly liaising with the government and apparently it wasn't going well.
Sabinus•1h ago
Chaotic governance model and uncertain business environment by the Trump admin as usual.
estearum•1h ago
Hey it's a perfectly pro-business environment as long as your business kisses the ring vigorously and continuously with perpetually escalating intensity.
avaer•1h ago
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.

Cider9986•1h ago
https://xcancel.com/AnthropicAI/status/2072106151890809341

https://archive.is/HSIxa

https://archive.is/BbxA1

https://megalodon.jp/2026-0701-0918-51/https://x.com:443/Ant...

natch•1h ago
They need Lehane or… since OpenAI got him, what is Fabiani up to these days?
matheusmoreira•55m ago
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.
tjohnell•55m ago
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.
alex_anglin•47m ago
Isn't it the wild west already?

On a lark, I asked Claude to compare AI to the wild west a while ago. It raised three points of similarity:

- Land-grab economics

- Lack of regulation

- Changing social and professional attitudes.

Whatever it is, it's a wild ride regardless.

Tenoke•46m ago
For non-Americans especially it does look possible to be the last one.
mateenah•54m ago
I wonder if it's still good
matheusmoreira•49m ago
Yeah, good question. I wonder if they fixed the obnoxious safety classifier too.
osti•26m ago
If anything that'll be more obnoxious because they have to show the government that it's safe.
matheusmoreira•22m ago
Isn't the warrantless mass surveillance enough?
Sabinus•54m ago
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.
dakolli•34m ago
If this is the most important industry for the US economy, the US is screwed. and .... Hopefully you're correct.

In past Empires kings bet their entire nations future on the words of soothsayers , people who said they could predict the future. It seems like Machine Learning engineers are the magicians of Empire of the modern age.

Sabinus•21m ago
>If this is the most important industry for the US economy, the US is screwed

Depends on how economically useful AI turns out to be. It will be useful, but it needs to be VERY useful for the current valuations.

>In past Empires kings bet their entire nations future on the words of soothsayers

I think AI's rise is much closer to the story of factory machines and computers than to soothsayers and emperors.

nelox•52m ago
> 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

tamimio•48m ago
So after this publicity they got, they will release a locked down version of the models, did I get that right?
sgc•45m ago
Sounds more like they are implementing mass surveillance and reporting whatever the US Gov wants for 'security reasons' back to them.
tamimio•43m ago
Yeah, it feels like a honeypot at this point. Gonna go with GLM instead
matheusmoreira•38m ago
Weren't they already doing that since the beginning? Fable released with a data retention policy. I assumed US government surveillance was the reason for this.
HDBaseT•48m ago
The question is how lobotomized will it be now?
unchocked•48m ago
w00t
drevil-v2•44m ago
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.

flyingshelf•40m ago
To others: Please don't downvote posts you disagree with.
brazukadev•21m ago
that is exactly why downvote exist.
AnimalMuppet•15m ago
That is part of why downvotes exist. They also exist for personal attacks, off topic tangents, posts that don't make sense, trolling, advertisements, AI generated content, and other such things we don't want to see here.

But "downvote for disagreement" is a legitimate use. I personally tried to tell someone that it wasn't, and I got corrected by dang.

petcat•36m ago
Nobody cares about this temporary "ban" by the US government. If anything it only increased the mystique of the two models.

I think Europe and Canada are just happy not to be frozen out of AI access completely at this point.

fmdv•43m ago
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!

woggy•41m ago
Hopefully GPT 5.6 soon
tinypak•34m ago
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
dakolli•21m ago
How to light 6k on fire.
dzonga•33m ago
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.

kraken_cult•29m ago
+5 social credit
chews•23m ago
-3 homer discount
dakolli•20m ago
I trust Chinese companies with my data way more than the corporations of the 4th Reich.
kcb•13m ago
You really think China doesn't have massive amounts of capital expenditure related to AI? They're actively bootstrapping an entire chip industry.... https://www.reuters.com/world/china/china-prepares-295-billi...
villish•11m ago
It's a little too later for export controls. Chinese models have made massive gains through legitimate research but also being trained on billions of tokens from Claude/GPT. The politicians have no idea how to stop that from happening so they pull the only lever they know.
stavarotti•24m ago
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?
dakolli•17m ago
Most people don't care about trust anymore, we live in a low trust society where this is to be expected. People gladly line up to be poisoned by fast food restaurants and trade 1/3 of their life for pieces of paper on a daily basis.
tmpz22•7m ago
Silicon valley may be a low trust society but I havent given up hope on the rest of it yet.
Havoc•23m ago
So much for way too dangerous end of the world
laidoffamazon•22m ago
So how much did they have to donate to the MAGA PAC for this one?
poopyscoopy•16m ago
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.
secretslol•8m ago
Considering US Govt originally said Fable 5 should only be used by Americans and blocked off everywhere else, and that all of a sudden a big change of heart - it makes me wonder if the Fable 5 that I might be able to use tomorrow will be the same Fable 5 an American can use? I just want to know the specifics of what changed. Because something has changed. Unless tomorrow, we can activate Fable 5, "But first, we need to scan your eyeballs for Persona!"
vlian2088•8m ago
>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.

gowthamsaiyadav•7m ago
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.
nickv•6m ago
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.

Avicebron•41m ago
Any news why?
ebbi•35m ago
Probably didn't kiss ass as much as most other tech CEOs.
s3p•32m ago
They don't speak the same [proverbial] language essentially. Dario and the WH talk about this stuff completely differently.

https://archive.is/9k7qt#selection-2001.41-2001.49 https://archive.is/dybOE

woeirua•1h ago
How many people are going to call Jeffrey Kessler? lol.
chatmasta•55m ago
Mildly surprising they lifted export restrictions for Mythos too. Isn’t that Fable minus the safety layer?
colechristensen•50m ago
Presumably there are different levels of safety. I assumed Fable was a nerfed Mythos, and not just via safety harnesses but actual model degredation.
ls612•36m ago
Anthropic claims the only difference is the draconian bans on cybersecurity and biology queries.
matheusmoreira•25m ago
The Sol benchmarks show Fable has slightly lower performance compared to Mythos.

https://openai.com/index/previewing-gpt-5-6-sol/

I assume they did something to the model itself.

Either way, I do hope they lift those draconian bans. Using the model was a terrible experience because of the constant downgrades. I didn't manage to harden my own projects before Fable got banned.

adastra22•8m ago
The session reverts to opus if it trips a limiter. Is the benchmark detecting and correcting for that?
s3p•35m ago
I don't think this is the case just because of the 'fallback' method they described, where suspicious requests are routed to Opus 4.8. If the model was degraded for certain categories of knowledge, then they'd probably be fine letting the model answer to it. IMO, of course
nickandbro•12m ago
Jeff is now going to have to change his number. Can’t imagine all the calls or messages he must be getting now
andy99•29m ago
All the discussion this week have been about GLM, Qwen, etc. Both over 1000 comments in the last couple days.

https://news.ycombinator.com/item?id=48709670

https://news.ycombinator.com/item?id=48721903

Of course Anthropic is still relevant, but people have realized they’re not special, and between this and the ID verification thing, they’ve given up a ton of their relevance vs a month ago.

chews•25m ago
I bought a GLM 1 year subscription and changed my environment variables to use Claude Code... yep the same one that is using stegonography to send details about users to the model. China knows where I live, I'm not getting ripped off or rug pulled on their models either.
Sammi•31m ago
I'm a small software business owner in Europe. I have to assume my competition is willing to pay for any business advantage they can get. And so I also have to pay for the SOTA model, whatever it is.
1over137•26m ago
Nonsense. Do you buy state of the art pens, pencils, printers, paper, computers, disks, etc.? No. You buy whatever is the best value for the case at hand. That’s often not the SOTA option.
admax88qqq•3m ago
Sure but that's orthogonal.

Yes you use the right tool for the job.

But if the job requires the best intelligence you can get with an LLM, then you use that.

Taking as an assumption that the quality of your product is a function of the quality of the inference you are using: if you use an inferior model because "what if it gets export controlled again" and your competitors don't, then your competitors are likely to win.

If you don't need frontier models for you job then this is all moot, but the thread started with

> You cannot build a business critical function on top of American SOTA frontier model

Which is silly. HN likes to roleplay bringing everythgin "business critical" in house because sometimes vendors mess up. Self host, don't use the cloud, run open models locally, built redundant supply chains in case of another covid, etc etc. Sometimes the risk is real, but most of the time the risk is rare and the cost of an interruption event is less than the cost of bringing everything in house or using lower quality vendors "just in case"

brazukadev•23m ago
do you think your current operation and niche is so optimized that not using Fable would put you out of business? Or is this a hope that using Fable will allow you to stay in business?
parodysbird•22m ago
This is a great recipe for going out of business.
jdlshore•16m ago
What concrete business advantage are you getting from LLMs?
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Speed.

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https://blog.colinbreck.com/when-impressive-performance-gains-do-not-matter/
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Would you use Fable 5 by Anthropic or Replit

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