Claude Fable 5 will be available again globally tomorrow.
After a series of productive conversations with the US government, we're redeploying the model with a new set of classifiers to target and block more cybersecurity tasks. In the near term, some routine tasks like coding and debugging will fall back to Opus 4.8. We’ll continue to refine these classifiers over the coming weeks to reduce false positives and better distinguish genuine misuse from legitimate requests.
We’ve also begun drafting a consensus framework—with Amazon, Microsoft, Google, and other Glasswing partners—for assessing the severity of AI jailbreaks and how AI developers should respond to them. We invite other industry partners and model providers to join us in this effort.
Finally, we’re scaling up our collaboration with the US government on model testing and safeguards. This will include pre-release access to models and safeguards for evaluation, information sharing on jailbreaks and misuse, and dedicated resources for joint research.
Thank you to our users for your patience, and to our partners across the government, industry, and the research community who worked alongside us to make Fable 5 available again.
Read our full blog: https://t.co/VHyum831ri
Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure.
We’re restoring access for these organizations quickly, and we’re continuing to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again.
JUST IN: The White House says it has signed the MOU and will lift the blockade of Fable 5 as soon as Friday, provided that Dario Amodei hands over all of the weapons-grade model weights.
Under the terms of the deal, Dario may maintain a limited civilian inference program, provided full compliance with the newly established International Artificial Intelligence Agency (IAIA), the U.S.-led coalition unveiled at the G7.
IAIA inspectors will be granted unannounced access to Anthropic's enrichment facilities to verify no checkpoint is enriched past 70% on DeepSWE or Humanity's Last Exam.
Anything above that is has no known civilian uses.
Additionally, Anthropic agrees to spin down 6,000 H100s training clusters, and use them solely for Sonnet 4.6 chatbots.
No additional underground datacenters will be built. Space Force will be monitoring by satellite.
Snapback provisions reinstate the blockade automatically if Mythos is detected breaching the terms of the agreement.
Demis Hassabis confirmed DeepMind will join the IAIA as a co-signatory. Sam Altman could not be reached for comment.
President Trump said negotiations with Anthropic over restoring access to the company’s latest artificial-intelligence models were “going fine” https://t.co/Xpc9Z08w4p
NEW @WIRED: Trump admin officials concluded talks today with Anthropic without lifting export controls on Claude Fable 5, and next steps are unclear
— Admin continues to believe that there are ways to jailbreak Fable 5 and access the capabilities of Mythos
— Anthropic continues to say those concerns are overblown and reiterated that position in working group meeting with Commerce Dept’s CAISI and ONCD
— Commerce Secy Howard Lutnick dialed in from G7 in France. National Cyber Director Sean Cairncross did not participate himself
— Commerce has expressed willingness to allow Fable 5 back online for consumer use, but only as long as Anthropic resolves their jailbreak concerns
w/ @ZeffMax@lilyhnewman
Prepare for takeoff. ✈️ Flight simulator is now available globally on web to all users. https://t.co/hQP0No142P
We've recently added many our most powerful professional desktop features to web. Elevation profiles, new import types, but there's always been one other feature you've been asking us to add to the web version of Google Earth, just for fun...
Where will you fly? Share your best maneuvers, views, and flyovers with us!
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.
The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance.
Access to all other Claude models is not affected.
We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.
Read our full statement: https://t.co/bwn0sximKZ