biosecurity

Anthropic's newly released Claude Fable 5, the company's first public Mythos-class model, refuses to answer basic biology questions including 'what are mitochondria' and 'how mRNA vaccines work.' The company told The Verge the filters are intentionally 'overly conservative' to prevent bioweapon research, blocking 'most queries tied to biology work.'

OpenAI has released GPT-Rosalind, a large language model trained specifically on 50 common biology workflows and major biological databases. Unlike broader science-focused models from competitors, GPT-Rosalind targets specialized biology tasks including pathway analysis, drug target prioritization, and cross-disciplinary research navigation.