Emad Mostaque, CEO of Stability AI, a leader in the generative AI space inked it. Many less prominent researchers did too.

"We call on all AI labs to immediately pause for at least 6 months the training of AI systems more powerful than GPT-4."

Elon Musk was a signatory, and of course, he's building an AI driving system which is remarkable but has a long way to go.

Based on my personal experience, it has achieved rough parity with a drunk sixteen-year-old.