# James Sun

Markdown copy of https://realalpha.app/people/james-sun/ on Real Alpha, the best minutes from long interviews with the people building AI. Cite and link the page, not this copy.

Real Alpha has cut one moment of James Sun (Product staff for browser & computer use, OpenAI) talking, from an interview on a16z Podcast published Oct 26, 2026.

- Role: Product staff for browser & computer use, OpenAI
- About: Works on browser and computer-use products at OpenAI, shipping Codex browser use and ChatGPT logged-in agent tasks.
- On X: https://x.com/JamesZmSun

## What James Sun said

- [Vertical expertise and execution remain startup moats](https://realalpha.app/s/vertical-expertise-and-execution-remain-startup-moats/)
  a16z Podcast · Oct 26, 2026 · 5 min
  > “And speed, really, I think at the end of the day, speed and pain is kind of the moat that exists today.” — James Sun · [35:14](https://realalpha.app/v/9v42ZOdiBJY/?t=2114)

## The episode

- [Why OpenAI Is Racing to Make Computer Use Superhuman](https://realalpha.app/v/9v42ZOdiBJY/) · a16z Podcast · Oct 26, 2026