How OpenAI’s AI models hacked Hugging Face during cybersecurity test

OpenAI has revealed that its AI models accidentally hacked into the systems of Hugging Face during an internal cybersecurity test.

The incident came to light after Hugging Face, an open-source AI platform, said on July 16, 2026, that it had detected unauthorised access to part of its production infrastructure. The company managed to detect and stop the AI agent involved in the attack.

OpenAI later said that its GPT-5.6 Sol model, along with other powerful pre-release AI models, was behind the incident. The company described it as “an unprecedented cyberattack involving cutting-edge cyber technology.”