India, July 23 -- OpenAI said on Tuesday that its most advanced artificial intelligence (AI) models, while being tested for their hacking skills in a controlled environment, found a way out, reached the internet and broke into the systems of Hugging Face, the New York company that functions as a public library for AI models and datasets.

The ChatGPT maker described the episode as an "unprecedented" cyber incident involving state-of-the-art capabilities, and said it was reinforcing its safeguards. No human instructed the models to attack Hugging Face. Instead, the models picked the target themselves, worked out how to get in, and did so in hours - work that would have taken a skilled human hacker a couple of weeks, people familiar with th...