Anthropic放宽Fable 5生物限制，病毒学毒理学仍设防
Anthropic loosens Fable 5's biology restrictions but keeps the guardrails on for virology and toxicology
Anthropic把Fable 5的生物误报砍了85%，普通生物问题不再被转给Opus 5，但病毒毒理还是管得严。
Anthropic将Fable 5生物学安全过滤器的误报率降低了约85%。此前，几乎所有生物学相关查询都会被拦截并转交给能力较弱的Opus 5。
现在，普通生物学问题可直接由Fable 5处理，但病毒学和毒理学等敏感双用途主题仍保留原有限制。
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-related queries got blocked and rerouted to the less capable Opus 5. The restrictions stay in place for sensitive dual-use topics like virology and toxicology. The article Anthropic loosens Fable 5's biology restrictions but keeps the guardrails on for virology and toxicology appeared first on The Decoder .
This report is categorized under AITOP's "Models" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to US-China foundation model benchmarks and commercialization comparison. Key entities and technical topics under continuous tracking include Anthropic, Fable 5, Opus 5, AI安全.
Source attribution: curated from Decoder (@Matthias Bastian). Cross-source corroboration: 11 independent sources have covered this development (including Claude, The Rundown AI, IT之家), confirming industry-wide signal strength.
