Noam Shazeer Computer scientist and entrepreneur whose work helped define modern generative AI. He co-invented key elements of the Transformer architecture, developed mixture-of-experts systems, co-founded Character.AI, led Gemini work at Google, and joined OpenAI in 2026.
AI Scientist
Worked on machine learning at Google, including sequence-to-sequence models, the Transformer, and LaMDA.
Technical Lead, Gemini
Returned to Google in 2024 and became a technical leader on Gemini. Announced his departure for OpenAI in June 2026.
Co-founder
Co-founded Character.AI and led foundational work on its conversational-model technology.
