Anthropic 恢复对 Claude 被安全拦截的请求计费
Anthropic 要给被安全系统拦下的请求扣钱了，不过 99.7% 的用户碰不到，做蒸馏或生物类请求的得留心。
Anthropic 宣布恢复对被安全防护拦截的 Claude 请求收费，范围仅限误报率较低的类别：生物、蒸馏攻击和前沿 LLM 开发。官方称近几周观察到针对系统的协同攻击，此举是防御层之一。测试数据显示 99.7% 使用 Claude Code、Claude.ai 或 Cowork 的账户未触发这些计费拦截，相关分类器的误报率低于 0.1%。用户若认为请求被误拦，可在 Claude Code 中用 /feedback 反馈。
Today, we'll resume charging for requests our safeguards block before Claude responds. This only applies in categories with low false positive rates: biology, distillation attacks, and frontier LLM development. We've seen some coordinated attacks on our systems in recent weeks, and this is one layer of defense.
In recent testing, 99.7% of accounts using Claude Code, Claude.ai, or Cowork did not hit any of these newly "billable blocks." The classifiers behind the blocks we’re resuming charging for today are tuned to have a <0.1% false positive rate. We know that's not 0%, and we're going to keep improving them so they interrupt your work less often. If you think a request has been blocked incorrectly, please report it with /feedback in Claude Code. https://t.co/uX6JhvN6He
