Elon Musk has accused Apple of unfairly favoring ChatGPT on its App Store and threatened legal action, triggering a fiery exchange with OpenAI CEO Sam Altman on Tuesday.DeepSeek and Perplexity compete with OpenAI and Musk's startup xAI.

Musk threatens to sue Apple for allegedly favoring ChatGPT and blocking other AI rivals from the App Store's top spot. Altman notes that Musk was accused of juicing his own algorithm on X.

Musk has not yet provided evidence that Apple has suppressed his apps. As of this writing, ChatGPT is the top app on the Apple App Store charts; Grok is in the fifth spot, lagging behind Threads.