Between ChatGPT and Grok AI, the rivalry has just erupted publicly. OpenAI CEO Sam Altman publicly criticized Grok, the chatbot created by Elon Musk's startup xAI. According to him, Grok has a "boomer humor" and is a "waste of time". He posted these comments on Thursday, November 9th, the day OpenAI launched a new version of ChatGPT. The mission of the creator of ChatGPT is clear: to prevent Grok from stealing the spotlight from ChatGPT.