Elon Musk on Monday targeted Apple and OpenAI in an antitrust lawsuit alleging that the iPhone maker and the ChatGPT maker are teaming up to thwart competition in artificial intelligence.

Elon Musk-owned xAI on Monday sued tech giants Apple and OpenAI over an alleged scheme to illegally dominate the artificial intelligence industry through a collaboration that equipped iPhones with AI tools.

Elon Musk threatened to sue Apple for favoring ChatGPT over Grok in the App Store — and now he has. On Monday, Musk's AI company xAI officially filed a lawsuit against Apple as well as ChatGPT creator OpenAI over the two companies' business partnership.