https://www.theguardian.com/technology/2023/mar/31/ai-research-pause-elon-musk-chatgpt

The statement has been revealed to have false signatures and researchers have condemned its use of their work

A letter co-signed by Elon Musk and thousands of others demanding a pause in artificial intelligence research has created a firestorm, after the researchers cited in the letter condemned its use of their work, some signatories were revealed to be fake, and others backed out on their support.