Generative AI ChatGPT Still Winning Hearts And Minds Over Vaunted Successor GPT-4, For These Reasons Says AI Ethics And AI Law GPT-4, the successor to ChatGPT, has now been available for several days, and so far the ChatGPT juggernaut continues unabated. Some had thought that GPT-4 would steal the winds from the sails of ChatGPT. Here's what really is taking place.