“In Sudden Alarm, Tech Doyens Call for a Pause on ChatGPT: Tech Luminaries, Renowned Scientists, and Elon Musk Warn of an ‘Out-Of-Control Race’ to Develop and Deploy Ever-More-Powerful AI Systems § GPT-5”, Will Knight, Paresh Dave2023-03-29 (GPT-5)⁠:

…“We call on all AI labs to immediately pause for at least 6 months the training of AI systems more powerful than GPT-4 (including the currently-being-trained GPT-5)”, states the open letter, whose signatories include Yoshua Bengio, a professor at the University of Montreal considered a pioneer of modern AI, historian Yuval Noah Harari, Skype cofounder Jaan Tallinn, and Twitter CEO Elon Musk.

…Microsoft and Google did not respond to requests for comment on the letter. The signatories seemingly include people from numerous tech companies that are building advanced language models, including Microsoft and Google. Hannah Wong, a spokesperson for OpenAI, says the company spent more than 6 months working on the safety and alignment of GPT-4 after training the model. She adds that OpenAI is not currently training GPT-5.