How Google Got Its Groove Back and Edged Ahead of OpenAI
- •Google co-founder Sergey Brin returned to full-time AI work following a prompt from an OpenAI researcher.
- •The internal name 'Nano Banana' was a mashup of nicknames created by a Google engineer during a late-night session.
- •Gemini metrics show a surge to 650 million monthly active users as of October 2025.
- •OpenAI maintains a lead in engagement with 800 million weekly active users reported for ChatGPT.
- •**Foundation Model: **A broad AI model trained on a vast amount of data that can be adapted to a wide range of downstream tasks.
Recent reporting from the Wall Street Journal, highlighted by Simon Willison, sheds light on Google's resurgence in the AI sector with its Gemini series. A pivotal moment in this 'comeback' was the return of co-founder Sergey Brin to active duty. Brin's re-engagement was reportedly triggered by a conversation with OpenAI researcher Daniel Selsam, who questioned why Brin wasn't working full-time on AI given the cultural impact of ChatGPT. This shift helped steer Google back toward aggressive development of its flagship foundation model. The article also clarifies the origin of 'Nano Banana,' an internal moniker created during a late-night development session by engineer Naina Raisinghani. Beyond the human-interest stories, the report provides rare insight into user engagement metrics. While Gemini reached a milestone of 650 million monthly users, it still trails OpenAI's ChatGPT, which claimed 800 million weekly active users. However, questions remain regarding how these platforms define a 'user,' specifically whether integration within productivity suites like Google Docs or Gmail counts toward the total.