OpenAI said it will soon start testing advertising on ChatGPT. Wall Street analysts have mixed views on the potential threat to Google.

Apple is sitting out the costly race to build AI models and infrastructure, as the iPhone maker becomes a potential kingmaker among tech rivals seeking to dominate the new industry. This week, the Silicon Valley group announced its most consequential move in AI so far through a deal to use Google’s Gemini models to power features for the iPhone and improve its Siri voice assistant.