The Google co-founder says 60-hours a week is the productivity sweet spot for AI engineers.

In an internal memo seen by the New York Times, the Google cofounder told employees working on Gemini, which develops the company's suite of AI products, that he recommends being in the office "at least every weekday" and that "60 hours a week is the sweet spot of productivity."

The tech giant’s co-founder said that if employees worked harder and were in the office more, the company could reach an artificial general intelligence breakthrough.

Google co-founder Sergey Brin thinks that maybe working in the office is better for productivity. A report from The New York Times cites an internal memo sent by Brin to employees where the Google co-founder called on employees to come back to the office.

Google co-founder Sergey Brin is urging employees working on artificial intelligence to spend at least 60 hours per week in the office as the search giant faces heated competition from OpenAI, Meta, Elon Musk’s xAI and China-based DeepSeek.