The ExploitGym paper evaluated several frontier models on the bench and reported that "Different models find different exploits" [1], so it seems most plausible

The ExploitGym paper evaluated several frontier models on the bench and reported that "Different models find different exploits" [1], so it seems most plausible that the "test solutions directly from Hugging Face’s production database" [2] which GPT-internal found were authored by Mythos (or some other LLM with complementary strengths), and placed in some internal HF repository when creating the ExploitGym paper/leaderboard. [1] https://www.cybergym.io/exploitgym/#:~:text=Different%20models%20find%20different%20exploits https://www.cybergym.io/exploitgym/#:~:text=Different%20mode... [2] https://openai.com/index/hugging-face-model-evaluation-security-incident/#:~:text=test%20solutions%20directly%20from%20Hugging%20Face%E2%80%99s%20production%20database https://openai.com/index/hugging-face-model-evaluation-secur...