'Social media is making children unhappy.'
PM Sir Keir Starmer speaks in Downing Street, as he announces a social media ban for under-16s
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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
Each advancement in AI models is largely shaped by how users interact with those models: what users do, how they do it, what mistakes they correct, and what feedback they provide. Over time, this user activity can become valuable data that helps improve future models. Then, users may be charged for access to newer models that were, in part, improved through data generated by users themselves. AI models need massive amounts of data, but important questions remain: Where did AI companies obtain their initial training data? How are they systematically collecting user data now, especially from paying users? Are users being properly informed, protected, and compensated for the value their data creates? We need transparency, accountability, and action.
False positive rate sky rocking!
Fable 5's safety measures flagged this message for cybersecurity or biology topics. They may flag safe, normal content as well. These measures let us bring you Mythos-level capability in other areas sooner, and we're working to refine them. Switched to Opus 4.8. Send feedback with /feedback or learn more: https://t.co/gPD5jwH2eL
Fable 5 drops off Claude subscriptions June 23rd. Usage credits only after that.
Here's how to adapt without your workflow falling apart:
1. Audit what you actually need frontier models for
Most tasks don't need Fable 5. Code review, drafting, summarization — Sonnet-class models handle these well at a fraction of the cost. Reserve frontier compute for what genuinely benefits from it: complex multi-step reasoning, long-horizon coding tasks, hard architecture decisions.
2. Build model-routing into your stack now
Don't hardcode your model. Use an abstraction layer so you can swap between Sonnet, Opus, and Fable 5 per task type. You'll save significantly and your users won't notice on simple tasks.
3. Get comfortable with local LLMs for dev tasks
For autocomplete, boilerplate generation, and quick lookups — a local model on your machine costs nothing per token. GLM, Qwen, and Llama 3 are worth benchmarking against your specific use cases.
4. Set token budgets per feature, not per account
If you're building products on top of AI APIs, this transition is a forcing function to add cost controls. Per-user or per-feature token caps will save you from a surprising bill.
Anthropic says Fable 5 comes back to subscriptions once capacity allows. Maybe it does. But designing your stack to be model-agnostic is the right call either way.
Dario is wrong.
He knows absolutely nothing about the effects of technological revolutions on the labor market.
Don't listen to him, Sam, Yoshua, Geoff, or me on this topic.
Listen to economists who have spent their career studying this, like @Ph_Aghion , @erikbryn , @DAcemogluMIT , @amcafee , @davidautor
THE JOB MARKET IS ABOUT TO GET WEIRD.
And most people are not prepared for what is coming.
Companies in 2026 are not looking for data scientists.
They are not looking for ML engineers.
They are not looking for people who can build models from scratch.
THEY ARE LOOKING FOR AI NERDS.
The person who walks into a meeting, sees a 4 hour manual process, and kills it in 10 minutes with Claude Code and LLMs.
The person who refuses to do anything manually twice.
The person who looks at every repetitive task and asks one question:
Why is a human still doing this.
That mindset is worth more right now than a machine learning PhD.
More than five years of Python experience.
More than any certification from any university.
THE NEW VALUABLE SKILL IS NOT TECHNICAL.
It is a refusal to accept inefficiency.
The people who develop that refusal this year will be completely unemployable in the old way and completely irreplaceable in the new one.
Which side of that line are you on.
Introducing Claude Managed Agents: everything you need to build and deploy agents at scale.
It pairs an agent harness tuned for performance with production infrastructure, so you can go from prototype to launch in days.
Now in public beta on the Claude Platform.