Elon Musk has escalated his feud with Sam Altman by threatening Apple with legal action over alleged antitrust violations, claiming that the App Store favors OpenAI's ChatGPT over his Grok chatbot. The dispute arises amid ongoing tensions stemming from Musk's exit from OpenAI and his criticisms of Altman’s management of the company. Altman retaliated by suggesting Musk’s accusations are hypocritical given his own manipulations of social media algorithms.