Anthropic 重新上线 Claude Fable 5，部署新安全分类器

Have seen some questions about the updated classifiers and wanted to clarify. As with the original classifiers, a small fraction of routine coding and debugging tasks will be flagged and fall back to Opus. We're excited for guys to get access back tomorrow. > **引用原帖 Anthropic (@AnthropicAI):** > 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 > https://x.com/AnthropicAI/status/2072163884430229756 Thariq (@trq212): And as we say in our blog, we're continuing to refine these safeguards to better distinguish genuine misuse from legitimate requests and reduce false positives.