US Lifts Export Restrictions on Anthropic's Claude Mythos 5 AI Model
The US Commerce Department lifted export restrictions on Anthropic’s Claude Mythos 5 AI model, authorizing the AI lab to distribute it to more than 100 approved domestic institutions. Commerce Secretary Howard Lutnick finalized the authorization as part of an agreement to address security concerns raised by the Trump administration, according to people familiar with the matter.
The policy shift reverses a freeze that took effect when Anthropic unexpectedly barred access to its frontier models, including Mythos 5 and Fable 5, after determining it could not reliably prevent foreign nationals from using the software under US export laws. While the Commerce Department secured partial relief for Mythos 5, ongoing negotiations aim to restore access to Fable 5 and establish formal export protocols, sources say.
From the sources (25 posts)
@kimmonismusThis Fable 5 update sounds almost too good to be true: The latest Claude Code update does not only include some interesting hints about Fable 5’s return. It also suggests that the model may be permanently added to the subscription plan.
@kimmonismusWe are so back. Fable 5 is so back.
@lentils80🚨 Fable 5 is reappearing in AWS Bedrock for some users but it's still not callable
@andrewcurran_AWS bedrock.
@andrewcurran_@TheStalwart Also reports of AWS now.
@hesamationFABLE 5 IS COMING BACK and likely included in subscriptions.
@cyberscoopnewsIn a conversation with @McCraryCyber's Frank Cilluffo, CyberScoop's @gregotto breaks down the timeline behind the controversy surrounding Anthropic’s Fable-5 and Mythos 5 models — and what it could mean for AI-enabled vulnerability discover
@mtsliveSITUATION EXPLAINED: Fable 5 might be coming back. • Leaked strings in Claude Code V2.1.190: "You've used your Fable 5 usage for this week" added • "Purchased separately from your plan" removed, suggesting it's going back into subscription
@socketsecurityThe Fable shutdown shows how quickly model access can become a business continuity risk. Many teams assumed the frontier AI supply chain was resilient. It’s now clear that access to critical AI infrastructure can change overnight. https:/
@ferossRT @SocketSecurity: The Fable shutdown shows how quickly model access can become a business continuity risk. Many teams assumed the fronti…
@mtsliveFable may return soon. Anonymous leaker Leo points out that Fable 5 has reappeared in Amazon Bedrock for some users. And now that chief compute officer Tom Brown is representing Anthropic in negotiations rather than Dario Amodei, the Whit
@kimmonismusFable 5 watch Claude Fable 5 is showing again in AWS Bedrock docs/model cards. AWS lists the model lifecycle as Active, with Bedrock IDs including `anthropic.claude-fable-5` and `global.anthropic.claude-fable-5`. The data-retention
@jukan05RT @ChrissGPT: 🚨 Fable 5 watch Claude Fable 5 is showing again in AWS Bedrock docs/model cards. AWS lists the model lifecycle as Active,…
@kimmonismusTo be clear: I personally *cannot* select it. Apparently, it is available to some in that they can select it in the model selector. And that also explains why it appears on Amazon Bedrock. But if you were able to select it for a long time,
@kimmonismusSome users can (re)select Fable 5 in the Claude Code model selector, while others say they were able to select it despite Fable 5 being taken down. I deleted the post about it because I was too unsure and didn't want to spread false inform
@kimmonismusI hope this is true.
@wesrothClaude Code v2.1.190 appears to contain new interface strings preparing for the return of Claude Fable 5.
@kimmonismusFable 5 is back - and now there’s video proof. Not just showing up in the model selector. People are actually using the model again. We are so back.
@wesrothClaude Fable 5 appears to have returned to Amazon Bedrock.
@sammcallister@kimmonismus We are currently serving exactly 0 traffic to Fable 5. This could be a UI bug though, will track it down.
@kimmonismusCorrection: Anthropic states that the apparent access to Fable 5 is likely attributable to a UI bug.
@kimmonismusCorrected the post with the Anthropic message:
@wesrothClaude Fable 5 appears to be returning to Claude users through a slow rollout.
@theamolavasareSeeing chatter about Fable 5 being accessible - can say categorically this is false, we are not serving any Fable / Mythos traffic Looking into possibility of UI bug on front-end (e.g. based on historical context), but also very real chanc
@theamolavasare@chetaslua @chetaslua unfortunately this is not true, and we are not currently serving ANY fable / mythos traffic