OpenAI GPT-5.5 System Card

OpenAI's GPT-5.5 System Card was revised in an update detected on September 4, 2026. The updated version removed two linked safety publications from its navigation structure: 'The Hugging Face incident and the road ahead' (dated August 26, 2026) and 'Offering Zero Data Retention for frontier models' (dated August 19, 2026). It added a new link to 'Safety overview: GPT-6 Astra' (dated September 3, 2026) in their place. The practical effect is that the public safety documentation linked from the GPT-5.5 System Card now directs readers to different safety materials, with emphasis shifting toward newer model documentation while removing references to specific prior security incidents and data retention policies.