UK AI Security Institute Staff Reported Off Work With Stress Amid Frontier-Model Testing Push

Multiple staff at the UK's AI Security Institute have been signed off work with stress and are receiving counselling, according to people familiar with the matter, raising scrutiny of the human burden inside one of the world's most closely watched frontier-AI testing bodies. The disclosure lands as AISI is being asked to scrutinize faster, more autonomous models while its access to some leading systems remains dependent on voluntary cooperation from AI developers.