In a shift from his previous hands-off approach, Google co-founder Sergey Brin has been actively involved in the company's AI endeavours.

Brin has been particularly focusing on the development of Google’s next-generation AI model, Gemini. According to reports from the Wall Street Journal, Brin has been showing up at Google offices three to four days a week since the buzz around the success of ChatGPT began late last year.

Brin's involvement has been primarily in...