Version comparison

OpenAI GPT-5 System Card

OpenAI · August 19, 2026 00:08 UTC vs August 20, 2026 00:07 UTC
Old version
August 19, 2026 00:08 UTC
2ddb6533c570828cfbf85491c6b18de912e539a501ff812661375714b38a01e8
CA-V-005896
New version
August 20, 2026 00:07 UTC
0d071abd13e43e8225932c3dda43d36f9cf52035ae972e1c3dba0e457e65bba8
CA-V-005938
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Change Summary
OpenAI's GPT-5 System Card was updated in an update detected on August 20, 2026. The document removed a reference to an August 18, 2026 article on 'Introducing ChatGPT for Teens' and replaced it with references to two articles: one on 'Offering Zero Data Retention for frontier models' dated August 19, 2026, and the retained 'Pacing model development in an era of cyber-critical capabilities' article. The substantive risk assessment language regarding biological harm remained unchanged. This change appears to reflect editorial updates to referenced materials rather than modifications to the model's risk evaluation or governance stance.
low severity
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12While we do not have definitive evidence that this model could meaningfully help a novice to create severe biological harm—our defined threshold ⁠ (opens in a new window) for High capability—we have chosen to take a precautionary approach. 2025 System Cards Author OpenAI Keep reading View all Pacing model development in an era of cyber-critical capabilities Company Aug 18, 2026 Introducing ChatGPT for Teens Product Aug 18, 2026 Expanding Daybreak as the Cyber Defense Window Narrows Security Aug 10, 202612While we do not have definitive evidence that this model could meaningfully help a novice to create severe biological harm—our defined threshold ⁠ (opens in a new window) for High capability—we have chosen to take a precautionary approach. 2025 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, 2026
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