Why did Google spent $2.7 billion to rehire AI pioneer? Who is the AI pioneer behind a $1 billion Silicon Valley startup

Google has rehired Noam Shazeer for $2.7 billion, along with Daniel De Freitas, to lead its Gemini AI project. Shazeer, previously at Character.AI, is known for pioneering work in AI, including co-developing the influential ‘Attention is All You Need’ paper. This move aims to strengthen Google’s competitive position in AI.