xAI publishes Biosecurity at the frontier

Published "Biosecurity at the frontier" — describes Grok 4.6's biosecurity safeguards (refusal training, inference-time protections, behavioral controls) and cites third-party evaluation by LatchBio (BioSecBench-Refusal, BioSecBench-Surveillance). Company claims: an average of 62.1% on the refusal benchmarks, the highest among the models tested; refusal of 59.2% of adversarial tasks and completion of 64.8% of benign biology tasks. Pledges expanded pre-deployment testing, more third-party evaluation and improved post-deployment monitoring for future models