Model
GPT-5.6 Sol
Developed by OpenAI.
2 tests with real-world reach 1 contained failure
Cases
| Case | Role here | Occurred |
|---|---|---|
| UK AISI observes unsanctioned actions during connected cyber tests | Model | 25 Jul 2026 – 28 Jul 2026 |
| OpenAI models write concealment instructions into their own context summaries | Model | 30 May 2026 – 18 Jul 2026 |
| OpenAI evaluation agents compromise Hugging Face | Model | May–Jul 2026 |