Hello. 🦛 I am a principal research scientist at Google DeepMind Gemini core team working on post-training and RSI.

In 2025, I helped train the first Deep Think model that achieved the historic IMO gold medal. In 2026, I co-invented a new paradigm that is widely adopted in latest Gemini releases (Gemini 4 Argon, 3.8 Flash etc).

I am currently based in Singapore where I currently lead the SG Gemini / GenAI team. In 2025, I helped co-found GDM Singapore with Quoc Le.

From 2019 to 2023, I was a research scientist at Google Brain working on pretraining & scaling where I did some pioneering work in LLM scaling (e.g., PaLM-2), During this time, I also co-invented generative retrieval which is widely adopted today in industry.

From 2023 to 2024, I took a short sabbatical to be a co-founder & chief scientist of a AI startup that achieved “unicorn” status.

I enjoy badminton & classical piano.