/Tech4h ago

Amazon CEO Andy Jassy warned Trump administration officials of security flaws in Anthropic's Mythos and Fable models, triggering export controls

AI Judge changed title after evaluation, original title: "Amazon CEO Andy Jassy warned Trump officials about Anthropic security risks before export restrictions hit its models"

Story Overview

Amazon's CEO flagged potential security issues in Anthropic's cutting-edge models during talks with Trump officials, setting off export controls that forced both Mythos 5 and Fable 5 offline for every user, not just foreign nationals, even though the models had only recently become available.

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#178

Original post

Chubby♨️@kimmonismus#1360inTech

It was in fact Amazon (CEO Andy Jassy) who reportedly helped trigger the Claude shutdown. Via The Information

Amazon CEO Andy Jassy reportedly warned senior Trump administration officials about security risks in Anthropic’s newest Claude models, helping trigger late-night export restrictions on Mythos 5 and Fable 5.

"An Amazon spokesperson told The Information: “As a leading cloud provider that serves a large number of private and public sector customers, it’s not uncommon for governments to seek our counsel on potential security risks. When they occur, we don’t share the details of these discussions.”"

In other words: Anthropic’s own mega-backer may have played a key role in pushing the government to freeze access to its most advanced models.

Chubby♨️@kimmonismus

Wait - so Amazon, one of Anthropic’s biggest investors, allegedly jailbroke Claude and then snitched to the U.S. government?

This cant be real. What.

9:27 AM · Jun 13, 2026 · 160.2K Views

Policy Risk

Restrictions landed faster than details emerged

A reported jailbreak claim prompted national cyber director Sean Cairncross to convene White House staff, who chose export limits as the quickest lever; Anthropic pushed back, calling for a clearer statutory process grounded in technical facts.

Open Question

Access freeze hits everyone while specifics stay vague

All users lost Mythos 5 and Fable 5 on a Friday evening with no timeline for restoration or revised access rules, leaving open how long the controls will last and whether similar moves will target other frontier models.

Sentiment

Many users criticized Amazon CEO Andy Jassy for warning Trump officials about security risks in Anthropic Claude models, accusing him of fake news or industry harm, while a few praised the alerts as protective or good for Amazon.

Pos

16.4%

Neg

83.6%

114 comments with sentiment.

Cluster Engagement

Posts from X

Most Activity

VIEWS197.4KBOOKMARKS310LIKES1.5KRETWEETS79REPLIES111

Amjad Masad@amasad

Feels like we’re getting psyoped. The end-game here is something bigger.

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

4h197.4K1.5K310

Matthew Berman@MatthewBerman

Jesus it keeps getting worse.

What would be the strategy behind Amazon’s CEO telling Trump to worry about Fable/Mythos?

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

3h86.2K43589

@jason@Jason

Let’s all take a deep breath, put politics and tribalism aside, and not overreact t @DarioAmodei’s effervescent blog posts

What we can all agree on is that:

A) these recent models are extremely powerful

B) we need to be thoughtful about releasing them*

Through that lens the public and private marketplace is doing a solid job of managing the situation, no?

[ * shout out to @elonmusk who saw this 15 years ago and created openAI to democratize access to these models — as opposed to one company controlling access to them ]

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

3h58K25135

Zephyr@zephyr_z9

Amazon/AWS being a defence contractor was the main reason Based on what Axios has reported, USG didn't want the model to be released publicly Ant refused and they were/are using AWS infra to deploy it If a major cybersecurity incident occured, then Amazon would get sued

Alex Kantrowitz@Kantrowitz

Amazon invested $50 billion in OpenAI earlier this year

1h25.5K21445

Chubby♨️@kimmonismus

There are only two possibilities:

Either a solution is quickly found next week that somehow explains to the market how enterprises can continue to access Anthropic's best models in the future, in agreement with the US government, or:

We foresee a rapid decline in the valuation of Anthropic and Dario Amodei, who has seriously miscalculated his dealings with the US government and, at the same time, the rapid success of OpenAI compared to Anthropic. The upcoming Anthropic IPO will be particularly important in this context.

Everything will be decided next week.

Chubby♨️@kimmonismus

It was in fact Amazon (CEO Andy Jassy) who reportedly helped trigger the Claude shutdown. Via The Information

In other words: Anthropic’s own mega-backer may have played a key role in pushing the government to freeze access to its most advanced models.

1h19.4K17622

Gary Marcus@GaryMarcus

1. WOW! Amazon is going to get some hate for this.

2. before judging myself I would love to know more about the nature and gravity of the exploits, and why these specific models were singled out, given that all LLMs are vulnerable.

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

3h12.1K9016

Dan Shipper 📧@danshipper

the last thing you see before andy jassy gets your model banned by the usg

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

4h7.5K766

Zephyr@zephyr_z9

Jassy was snitching DAYUM

4h11K801

Andrew Curran@AndrewCurran_

medjed无为圆猫@medjedowo

@AndrewCurran_

3h4.5K860

Florian Brand@xeophon

big jeffs trainium hell got even hotter

Andrew Curran@AndrewCurran_

Update on the Amazon connection:

4h4.4K584

Gary Marcus@GaryMarcus

1. WOW! Amazon is going to get some hate for this.

2. before judging myself I would love to know more about the nature of the exploits, and why these specific models were singled out, given that all LLMs are vulnerable.

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

4h3K175

Chubby♨️@kimmonismus

The plot thickens friends

Chubby♨️@kimmonismus

It was in fact Amazon (CEO Andy Jassy) who reportedly helped trigger the Claude shutdown. Via The Information

In other words: Anthropic’s own mega-backer may have played a key role in pushing the government to freeze access to its most advanced models.

4h7K441

Chubby♨️@kimmonismus

Source https://www.theinformation.com/articles/amazons-jassy-raised-concerns-anthropic-model-trump-crackdown?rc=bfliih

Chubby♨️@kimmonismus

It was in fact Amazon (CEO Andy Jassy) who reportedly helped trigger the Claude shutdown. Via The Information

In other words: Anthropic’s own mega-backer may have played a key role in pushing the government to freeze access to its most advanced models.

4h7.1K164

Andrew Curran@AndrewCurran_

Update on the Amazon connection:

Chubby♨️@kimmonismus

It was in fact Amazon (CEO Andy Jassy) who reportedly helped trigger the Claude shutdown. Via The Information

In other words: Anthropic’s own mega-backer may have played a key role in pushing the government to freeze access to its most advanced models.

4h6.6K193

Andrew Curran@AndrewCurran_

https://www.wsj.com/tech/ai/amazon-ceos-talks-with-u-s-officials-triggered-crackdown-on-anthropic-models-dcc90578

Andrew Curran@AndrewCurran_

Conversations between Amazon CEO Andy Jassy and Treasury Secretary Scott Bessent led to the decision by the White House last night to control the use of Fable 5 and Mythos 5, which resulted in Anthropic's subsequent decision to remove them from public use.

3h2.8K290

Andrew Curran@AndrewCurran_

Stephanie Palazzolo@steph_palazzolo

Breaking: Amazon CEO Andy Jassy was among the tech leaders who raised concerns to senior Trump officials this week re: security risks in Anthropic's newest models.

Those convos set in motion the government's new export controls on foreign national access to Mythos and Fable.

3h2.8K210

Andrew Curran@AndrewCurran_

@xeophon Betrayers end up in ice as I recall.

Florian Brand@xeophon

big jeffs trainium hell got even hotter

4h882220

Alamin (He/Him)@alalamin19

@kimmonismus I do not understand. Wasn't @DarioAmodei and @AnthropicAI asking to be regulated? Are you sure that they did not report themselves?

4h1.5K14

melea.ai@trymelea

@steph_palazzolo Anthropic's releasing a new model called Sphincter

4h15522

Chris@ChrissGPT

@MatthewBerman This will be Reversed today

3h1955