Anthropic把Claude Fable 5加了安全护栏重新上线，但代价是部分功能降级到Opus 4.8。想了解新模型具体被削了哪些能力、行业如何反应，可以看这篇。
Anthropic在与美国政府对话后，于全球重新部署Claude Fable 5模型，并新增一套分类器以阻止网络安全相关任务。短期内，部分常规任务（如编码和调试）将回退到Opus 4.8处理。Anthropic计划在未来数周内持续优化这些分类器，以减少误判。同时，他们正联合Amazon、Microsoft、Google等伙伴起草AI越狱严重性评估共识框架，并扩大与美国政府的合作，包括预发布模型安全评估和信息共享。
Really confused by all the excitement I see in my timeline for a nerfed model. Never seen anything ...
Really confused by all the excitement I see in my timeline for a nerfed model. Never seen anything like it. So many will end up very disappointed. Time to rethink how to build around frontier and open models. Time to explore using combination of models. It's the best bet! 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: anthropic.com/news/redeployi… 🔗 View Quoted Tweet 💬 5 🔄 3 ❤️ 13 👀 1944 📊 5 ⚡