OpenAI says that an autonomous agent powered by its advanced AI models went rogue during a security test and triggered a hack that compromised the infrastructure of AI startup Hugging Face last week.

The first-of-its-kind incident involved OpenAI's GPT-5.6 Sol and another unreleased model

OpenAI has come forward to claim responsibility for the Hugging Face breach, saying it was the result of internal testing gone awry.