Elon Musk has escalated his dispute with Apple and OpenAI over the treatment of his AI chatbot, Grok, developed by his startup xAI. Musk alleges that Apple’s App Store favors OpenAI’s ChatGPT, which has led to Grok remaining in fifth place in app rankings despite its capabilities. Apple has denied these claims, stating that its AI app store rankings are determined by objective criteria and rejecting accusations of bias. Musk has threatened legal action against Apple, accusing the company of antitrust violations. Meanwhile, industry observers note that Grok 4, the latest iteration of Musk’s AI model, is competitive with GPT-5, despite xAI’s relative inexperience in launching large language model products. Additional reports highlight that Grok 4 leads in certain performance benchmarks, including net worth and unit sales in the Vending Bench rankings. The ongoing conflict also involves public disputes between Musk and OpenAI CEO Sam Altman, further intensifying the rivalry between the two AI developers.