OpenAI’s head of platform engineering on the next 12-24 months of AI | Sherwin Wu
Sherwin Wu, OpenAI’s head of platform engineering, describes how 95% of OpenAI engineers use Codex daily and why the next 12-24 months are a rare window for engineers to set new standards before the role fully transforms.
- 95% of OpenAI engineers use Codex daily; engineers using it open 70% more PRs, and the gap keeps widening.
- Codex reviews 100% of all PRs at OpenAI, cutting code review time from 10-15 minutes to 2-3 minutes.
- One internal OpenAI team runs a 100% Codex-written codebase with no escape hatch — key finding: agent failures are almost always context/underspecification problems.
- Engineers now manage 10-20 parallel Codex threads simultaneously, shifting the IC role closer to tech lead or manager.
- Wu argues the one-person billion-dollar startup creates demand for ~100 bespoke B2B SaaS tools per company, potentially triggering a golden age of B2B SaaS.
- Business process automation — repeatable, deterministic enterprise workflows — is underrated and may be a bigger AI opportunity than software engineering itself.
- ChatGPT has 800 million weekly active users (~10% of the world) and is still growing rapidly.
- Wu’s advice to builders: stop worrying about OpenAI squashing you — every failed startup he’s seen failed due to poor product-market fit, not lab competition.
2026-02-12 · Watch on YouTube