He called OpenAI boss Sam Altman a liar after Altman claimed Musk used his platform to benefit himself and his own companies. The row is the latest flashpoint in what is an ongoing feud between the billionaires who co founded OpenAI but now fiercely compete after Musk left the firm. Apple announced a partnership with ChatGPT in June 2024 but there is no suggestion Apple favours one app over the other, and several rival AI apps such as DeepSeek and Perplexity have topped the App Store charts...
