Anthropic completely shut off access to its Mythos 5 and Fable 5 models Friday night, just days after they were launched.
The move comes after Anthropic’s receipt of a US Commerce Department directive Friday evening, subjecting the new models to export controls restricting their use anywhere outside the United States. In a message posted Friday night, Anthropic said the only way for it to ensure compliance with that government order in the immediate term “is that we must abruptly disable Fable 5 and Mythos 5 for all our customers.” Access to other Anthropic models is not affected.
An Axios report cited an administration official saying that the administration is concerned by reports of a jailbreak that reportedly gets around broad classifier-based safeguards meant to block Fable 5 prompts regarding cybersecurity, chemistry, and biology. The administration reportedly requested a pause in the release of these models to gain time for the “national security apparatus” to be “hardened” against this kind of threat. That hardening could be complete “in the next few weeks,” Axios’ source suggested.
In its Friday night announcement post, Anthropic said the government has only provided it with “verbal evidence of a potential narrow, non-universal jailbreak” that involves getting Fable 5 to review a specific codebase for software flaws. The company says it has only seen evidence of this kind of jailbreak being used to find “minor” and “relatively simple” software vulnerabilities, and that other publicly available models like GPT-5.5 has similar capabilities on this score.
“We are complying with the government’s legal directive and are removing access to Fable 5 and Mythos 5 for all users,” Anthropic writes. “However, we disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people. If this standard was applied across the industry, we believe it would essentially halt all new model deployments for all frontier model providers.”
Earlier this month, President Trump signed an executive order urging AI model makers to submit to voluntary government security testing. That order came after an initial signing ceremony planned for last month was abruptly postponed amid reported concerns of disagreements about it within the administration.
Anthropic apologized to customers for a “disruption” that it said is the result of a “misunderstanding,” and said it will release more details about the situation in the next 24 hours.

The Justice Department on Friday approved Paramount’s proposed $111 billion takeover of Warner Bros. Discovery.
After concluding its antitrust investigation into the pending merger, the department said in a statement that it found that the deal posed no threat to competition or consumers of film, broadcast television or streaming.
The decision clears the way for a merger of two rival Hollywood studio titans: Paramount, the owner of CBS, including CBS News, will swallow the much larger Warner, which includes HBO and CNN.
The DOJ”s Antitrust Division concluded that a union of two studio giants isn’t anti-competitive because the streaming market has expanded the competition for conventional Hollywood studios, which includes Netflix, Apple and Amazon, as well as smaller streamers. The Justice Department’s view is that, for the same reason, consumers won’t lose out because there are plenty of other places to get entertainment.
Several states, including California, have raised antitrust concerns. The European Union is investigating as well.
California Attorney General Rob Bonta, who has been investigating the deal for antitrust violations, said in a post on social media following the Justice Department’s approval: “The merger of Warner Bros and Paramount is not a done deal and remains under investigation by my office.”
In a statement following the decision, Paramount described the deal as “pro-competitive,” and would result in “a stronger company better positioned to compete against dominant technology platforms in an industry increasingly defined by intense competition for audiences, talent, technology, and investment.”
The company said it planned to complete the merger as soon as possible, “delivering its benefits to consumers, creators, and the entertainment industry as a whole.”
The consolidation will put media mogul David Ellison — son of Oracle co-founder Larry Ellison — at the helm of Warner Bros. studio as well as its cable and streaming properties, including CNN and HBO. The Ellison family took over Paramount and CBS last summer.
In the months leading up to the regulatory approval, critics in Hollywood feared the deal would consolidate an already concentrated media landscape and lead to fewer jobs and less creative content.
In April, thousands of directors, actors, writers and other industry talent — including Kristen Stewart, Pedro Pascal and Javier Bardem — signed an open letter opposing the merger.
The elder Ellison is also a financial backer and adviser to President Trump on artificial intelligence. Critics of recent changes at CBS under the Ellisons’ control are concerned that, as they say has happened with CBS News, the acquisition would make CNN more friendly to Trump.
NPR’s Carrie Johnson and Mandalit del Barco contributed to this story.

The Justice Department will not challenge Paramount’s merger with Warner Bros. Discovery, clearing a major hurdle for the $111 billion deal, the agency said Friday.
The merger would consolidate the ownership of two major movie studios; two major streaming services, Paramount+ and HBO Max; and two television news networks, CNN and CBS News, under the leadership of the tech scion David Ellison.
The scale of that combination has raised concerns that it could reduce the number of buyers for TV and movie scripts and potential employers for actors and crew members, driving down wages and the prices paid for creative material. The Justice Department blocked a publishing deal in 2022 over similar claims.
In an unusual statement announcing its decision, the Department of Justice said its investigation of the deal had included hours of depositions, interviews and meetings that “all led to the same conclusion: The film and television industry is highly dynamic, and the proposed transaction is not likely to harm competition or American consumers.”
That statement could help Paramount fight any future challenges. Some state attorneys general have pledged to take a hard look at the deal, and could bring their own case. Also, an antitrust regulator in Britain said this week that it would launch its own investigation of the deal.
A spokeswoman for Paramount, Susan Friedman, said in a statement on Friday that the merger would result in a “stronger company” that could succeed “in an industry increasingly defined by intense competition for audiences, talent, technology and investment.”
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Amazon officially announced the 2026 Prime Day start time yesterday and the early deals are now live. We very much expect more early discounts to land this week and next in the lead up to Prime Day 2026, but there are already deep discounts on networking gear, Kindle accessories, and up to 50% off Ring smart home bundles, AirPods Pro 3, and Google gear, plus more.
Early Amazon Prime Day deals
Update 6/11: Amazon has now dropped AirPods Pro 3 and AirPods Max 2 down to new all-time low pricing as part of its Father’s Day and early Prime Day deals:
AirPods Pro 3 $179 (Reg. $249) – New all-time low
AirPods 4 $99 (Reg. $129)
AirPods Max 2$499 (Reg. $549) – New all-time low
Amazon has organized all of its early Prime Day deals on this landing page so you can find them quickly. As per usual, the earliest of these deals are delivering notable price drops on the Amazon eero Wi-Fi gear we featured already, but you’ll also find up to 50% off Ring smart home gear, and more:
Early Prime Day deals on Amazon Devices up to 65% off
Early Prime Day Ring smart home deals
Here are some of the highlight Ring offers we have uncovered thus far – you’re looking at up to 50% off the list prices here:
Ring Battery Doorbell with Indoor Cam Plus $70 (Reg. $160)
Ring Indoor Cam 2-pack $50 (Reg. $80)
Ring Battery Doorbell 2K 2-pack $90 (Reg. $200)
And even more…
Early Prime Day top tech deals
Apple AirPods Pro 3 $199 $179 (Reg. $249)
Apple AirPods Max 2 $510 (Reg. $549)
15-inch M5 MacBook Air 16GB/512GB from $1,099 (Reg. $1,299) – Amazon all-time low
Google Pixel 10a 128GB $449 (Reg. $499)
Google Pixel 10a 256GB $549 (Reg. $599)
Google Pixel 10 128GB from $599 (Reg. $799)
Google Pixel 10 256GB from $699 (Reg. $899)
Google Pixel 10 Pro 128GB $749 (Reg. $999)
Google Pixel 10 Pro 256GB from $849 (Reg. $1,099)
Google Pixel 10 Pro 512GB from $969 (Reg. $1,220)
Google Pixel 10 Pro XL 256GB $949 (Reg. $1,199)
Google Pixel 10 Pro XL 512GB from $1,019 (Reg. $1,320)
Google Pixel 10 Pro Fold 256GB from $1,499 ($300 off)
Google Pixel 10 Pro Fold 512GB from $1,619 ($300 off)
Early Prime eero deals

The Justice Department has signed off on Paramount Skydance’s $110 billion acquisition of Warner Bros. Discovery, clearing the way for a merger that will unite two historic Hollywood studios and reshape the American entertainment industry.
In a statement, the department said it determined that the massive merger was “not likely to result in harm to competition or American consumers.”
The Justice Department said it reached that conclusion after receiving extensive feedback.
“Over the course of a rigorous eight-month investigation led by the Division’s career staff, the Division received from the Parties over two million documents,” it said in a statement. It also said that it heard “extensive” advocacy from third parties during the process.
The news was first reported by Politico.
Paramount owns a 114-year-old film studio, the Paramount+ streaming service and the CBS broadcast network. Warner owns a 116-year-old film studio, the HBO Max streaming service and a suite of cable channels, including CNN.
Paramount Skydance CEO David Ellison has vowed to “honor the legacy of two iconic companies while accelerating our vision of building a next-generation media and entertainment company.” The 43-year-old media executive is the son of technology magnate Larry Ellison, the co-founder of Oracle and an ally of President Donald Trump.
But the deal has faced blowback from some Hollywood professionals and government regulators.
In an open letter released in April, more than 1,000 entertainment professionals said the deal would “further consolidate an already concentrated media landscape, reducing competition at a moment when our industries — and the audiences we serve — can least afford it.”
The merger could draw legal challenges from state attorneys general. California Attorney General Rob Bonta has said his office is investigating the tie-up, and a person familiar with the matter said New York Attorney General Letitia James’ office is part of that probe.
Sen. Elizabeth Warren, D-Mass., who has publicly advocated against the deal, said the Justice Department’s green light was “terrible news for every American.”
“This fight isn’t over,” Warren said in a post on X. “State AGs must block this merger.”
Bonta’s office said its investigation was ongoing and otherwise declined to comment on the Justice Department’s move.
European Union officials are reviewing the merger over the deal’s financial backing from three Middle Eastern sovereign wealth funds. In an April filing with the U.S. Securities and Exchange Commission, Paramount said its acquisition of Warner is backed in part by Saudi Arabia’s Public Investment Fund, Abu Dhabi’s L’IMAD Holding and the Qatar Investment Authority.