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September 26, 2026 00:07 UTC
fcb5daae81b9365a8bf9474ae45cc611595e6b4233a02c94f38c2df9c5231718
CA-V-007158
New version
September 30, 2026 00:07 UTC
18ea98d1e90f3c4e6ec557854b01b39ef7db696b0a8e9d1fea1be69dc05d390b
CA-V-007209
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Change Summary
OpenAI updated their OpenAI GPT-5 System Card on September 30, 2026. Change detected: 2 sentence(s) modified. Document contained 13 sentences after update.
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2 Sentences modified
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13 Sentences after
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0OpenAI August 7, 2025 Publication Safety GPT‑5 System Card Read the System Card (opens in a new window) Dive into the data (opens in a new window) Share GPT‑5 is a unified system with a smart and fast model that answers most questions, a deeper reasoning model for harder problems, and a real-time router that quickly decides which model to use based on conversation type, complexity, tool needs, and explicit intent (for example, if you say “think hard about this” in the prompt).0GPT-5 System Card | OpenAI August 7, 2025 Publication Safety GPT‑5 System Card Read the System Card (opens in a new window) Dive into the data (opens in a new window) Share GPT‑5 is a unified system with a smart and fast model that answers most questions, a deeper reasoning model for harder problems, and a real-time router that quickly decides which model to use based on conversation type, complexity, tool needs, and explicit intent (for example, if you say “think hard about this” in the prompt).
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 Sam Altman’s remarks at the United Nations Security Council Global Affairs Sep 23, 2026 Introducing MentalHealthBench Publication Sep 23, 2026 Priorities and principles for effective third party assessments Safety Sep 22, 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 Towards safety cases for frontier AI training Safety Sep 28, 2026 How we will do better for Australia Company Sep 28, 2026 Sam Altman’s remarks at the United Nations Security Council Global Affairs Sep 23, 2026
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