What is ChatGPT-4 and how can you use it? Here’s everything you need to know

ChatGPT-4 is the fourth iteration of the OpenAI software that has analyzed vast quantities of information from across the internet in order to generate human-sounding text and give detailed responses to questions.

It's been criticized for giving inaccurate answers, showing bias and for bad behavior.

Morgan Stanley is using it to organize wealth management data, payment company Stripe is testing it can help combat fraud.