Version comparison

OpenAI GPT-5.5 System Card

OpenAI · August 20, 2026 00:07 UTC vs August 27, 2026 00:10 UTC
Old version
August 20, 2026 00:07 UTC
0b271af8be6e83e9eb05d58603a19b69171880bac4f0bea0ddbd4d3d06c4b533
CA-V-005939
New version
August 27, 2026 00:10 UTC
aea24a94e2674486027db92ffe7e260ded93844b0f021f0365577cf396b34c32
CA-V-006104
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Change Summary
OpenAI's GPT-5.5 System Card was updated on August 27, 2026 to revise its introductory metadata and add a reference to a security incident discussion. The change replaced outdated blog post listings with a new entry titled 'The Hugging Face incident and the road ahead' dated August 26, 2026. This appears to be a routine metadata refresh directing readers to current security-related content rather than a substantive change to the model's documented safeguards or deployment practices.
low severity
1 Sentences added
0 Sentences removed
1 Sentences modified
9 Sentences before
10 Sentences after
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8This card was updated on April 24, 2026, to include additional information about safeguards for the deployment of GPT‑5.5 and GPT‑5.5 Pro in the API. 2026 System Cards Author OpenAI Keep reading View all Offering Zero Data Retention for frontier models Company Aug 19, 2026 Pacing model development in an era of cyber-critical capabilities Company Aug 18, 2026 Introducing ChatGPT for Teens Product Aug 18, 20268This card was updated on April 24, 2026, to include additional information about safeguards for the deployment of GPT‑5.5 and GPT‑5.5 Pro in the API. 2026 System Cards Author OpenAI Keep reading View all Your browser does not support the video tag.
9The Hugging Face incident and the road ahead Security Aug 26, 2026 Offering Zero Data Retention for frontier models Company Aug 19, 2026 Pacing model development in an era of cyber-critical capabilities Company Aug 18, 2026
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