Why is Google making changes to its AI leadership?

Google's parent, Alphabet, has overhauled the leadership of its AI division, with AI chief Demis Hassabis stepping back from his main managerial role and several Gemini leaders, including Jeff Dean, leaving the company. The shakeup comes as the latest Gemini model faces delays. The move aims to address concerns that Google is losing ground to rivals OpenAI and Anthropic.