Anthropic 放宽 Fable 5 生物学限制，但保留病毒学和毒理学防护
原标题：Anthropic loosens Fable 5's biology restrictions but keeps the guardrails on for virology and toxicology
AI 摘要
Anthropic 将 Fable 5 的生物安全过滤器误报率降低了约 85%，使该模型能够处理更多生物学任务，如解读实验室结果和回答医学问题。但针对病毒学、毒理学和分子设计等“双重用途”主题的限制仍然保留，以防止恶意行为者获取危险能力。Anthropic 认为生物风险比网络攻击更难控制，并计划通过访问计划让研究人员最终使用受限功能。
正文节选
Anthropic loosens Fable 5's biology restrictions but keeps the guardrails on for virology and toxicology Anthropic has cut false positives in its biology safety filters for Fable 5 by about 85 percent. Previously, nearly all biology queries were blocked and rerouted to the less capable Opus 5, drawing sharp criticism from scientists. Users can now handle far more biology tasks with Fable 5, such as interpreting lab results, understanding symptoms, and answering medical questions. Restrictions re