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“Engineers are becoming sorcerers” | The future of software development with OpenAI’s Sherwin Wu

Shownote

Sherwin Wu leads engineering for OpenAI’s API platform, where roughly 95% of engineers use Codex, often working with fleets of 10 to 20 parallel AI agents. We discuss: 1. What OpenAI did to cut code review times from 10-15 minutes to 2-3 minutes 2. How AI is changing the role of managers 3. Why the productivity gap between AI power users and everyone else is widening 4. Why “models will eat your scaffolding for breakfast” 5. Why the next 12 to 24 months are a rare window where engineers can leap ahead before the role fully transforms — Brought to you by: DX [https://getdx.com/lenny]—The developer intelligence platform designed by leading researchers Sentry [http://sentry.io/lenny]—Code breaks, fix it faster Datadog [https://www.datadoghq.com/lenny]—Now home to Eppo, the leading experimentation and feature flagging platform — Episode transcript: https://www.lennysnewsletter.com/p/engineers-are-becoming-sorcerers [https://www.lennysnewsletter.com/p/engineers-are-becoming-sorcerers] — Archive of all Lenny's Podcast transcripts: https://www.dropbox.com/scl/fo/yxi4s2w998p1gvtpu4193/AMdNPR8AOw0lMklwtnC0TrQ?rlkey=j06x0nipoti519e0xgm23zsn9&st=ahz0fj11&dl=0 [https://www.dropbox.com/scl/fo/yxi4s2w998p1gvtpu4193/AMdNPR8AOw0lMklwtnC0TrQ?rlkey=j06x0nipoti519e0xgm23zsn9&st=ahz0fj11&dl=0] — Where to find Sherwin Wu: • X: https://x.com/sherwinwu [https://x.com/sherwinwu] • LinkedIn: https://www.linkedin.com/in/sherwinwu1 [https://www.linkedin.com/in/sherwinwu1] — Where to find Lenny: • Newsletter: https://www.lennysnewsletter.com [https://www.lennysnewsletter.com] • X: https://twitter.com/lennysan [https://twitter.com/lennysan] • LinkedIn: https://www.linkedin.com/in/lennyrachitsky/ [https://www.linkedin.com/in/lennyrachitsky/] — In this episode, we cover: (00:00) Introduction to Sherwin Wu (03:10) AI’s role in coding at OpenAI (06:53) The future of software engineering with AI (12:26) The stress of managing agents (15:07) Codex and code review automation (19:29) The changing role of engineering managers (24:14) The one-person billion-dollar startup (31:40) Management lessons (37:28) Challenges and best practices in AI deployment (43:56) Hot takes on AI and customer feedback (48:57) Building for future AI capabilities (50:16) Where models are headed in the next 18 months (53:35) Business process automation (57:22) OpenAI’s ecosystem and platform strategy (01:00:50) OpenAI’s mission and global impact (01:05:21) Building on OpenAI’s API and tools (01:08:16) Lightning round and final thoughts — Referenced: • Codex: https://openai.com/codex [https://openai.com/codex] • OpenAI’s CPO on how AI changes must-have skills, moats, coding, startup playbooks, more | Kevin Weil (CPO at OpenAI, ex-Instagram, Twitter): https://www.lennysnewsletter.com/p/kevin-weil-open-ai [https://www.lennysnewsletter.com/p/kevin-weil-open-ai] • OpenClaw: https://openclaw.ai [https://openclaw.ai] • The creator of Clawd: “I ship code I don’t read”: https://newsletter.pragmaticengineer.com/p/the-creator-of-clawd-i-ship-code [https://newsletter.pragmaticengineer.com/p/the-creator-of-clawd-i-ship-code] • The Sorcerer’s Apprentice: https://en.wikipedia.org/wiki/The_Sorcerer%27s_Apprentice_(Dukas) [https://en.wikipedia.org/wiki/The_Sorcerer%27s_Apprentice_(Dukas)] • Quora: https://www.quora.com [https://www.quora.com] • Marc Andreessen: The real AI boom hasn’t even started yet: https://www.lennysnewsletter.com/p/marc-andreessen-the-real-ai-boom [https://www.lennysnewsletter.com/p/marc-andreessen-the-real-ai-boom] • Sarah Friar on LinkedIn: https://www.linkedin.com/in/sarah-friar [https://www.linkedin.com/in/sarah-friar] • Sam Altman on X: https://x.com/sama [https://x.com/sama] • Nicolas Bustamante’s “LLMs Eat Scaffolding for Breakfast” post on X: https://x.com/nicbstme/status/2015795605524901957 [https://x.com/nicbstme/status/2015795605524901957] • The Bitter Lesson: http://www.incompleteideas.net/IncIdeas/BitterLesson.html [http://www.incompleteideas.net/IncIdeas/BitterLesson.html] • Overton window: https://en.wikipedia.org/wiki/Overton_window [https://en.wikipedia.org/wiki/Overton_window] • Developers can now submit apps to ChatGPT: https://openai.com/index/developers-can-now-submit-apps-to-chatgpt [https://openai.com/index/developers-can-now-submit-apps-to-chatgpt] • Responses: https://platform.openai.com/docs/api-reference/responses [https://platform.openai.com/docs/api-reference/responses] • Agents SDK: https://platform.openai.com/docs/guides/agents-sdk [https://platform.openai.com/docs/guides/agents-sdk] • AgentKit: https://openai.com/index/introducing-agentkit [https://openai.com/index/introducing-agentkit] • Ubiquiti: https://ui.com [https://ui.com] • Jujutsu Kaisen on Crunchyroll: https://www.crunchyroll.com/series/GRDV0019R/jujutsu-kaisen?srsltid=AfmBOoqvfzKQ6SZOgzyJwNQ43eceaJTQA2nUxTQfjA1Ko4OxlpUoBNRB [https://www.crunchyroll.com/series/GRDV0019R/jujutsu-kaisen?srsltid=AfmBOoqvfzKQ6SZOgzyJwNQ43eceaJTQA2nUxTQfjA1Ko4OxlpUoBNRB] • eero: https://eero.com [https://eero.com] • Opendoor: https://www.opendoor.com [https://www.opendoor.com] — Recommended books: • Structure and Interpretation of Computer Programs: https://www.amazon.com/Structure-Interpretation-Computer-Programs-Engineering/dp/0262510871 [https://www.amazon.com/Structure-Interpretation-Computer-Programs-Engineering/dp/0262510871] • The Mythical Man-Month: Essays on Software Engineering: https://www.amazon.com/Mythical-Man-Month-Software-Engineering-Anniversary/dp/0201835959 [https://www.amazon.com/Mythical-Man-Month-Software-Engineering-Anniversary/dp/0201835959] • There Is No Antimemetics Division: A Novel: https://www.amazon.com/There-No-Antimemetics-Division-Novel/dp/0593983750 [https://www.amazon.com/There-No-Antimemetics-Division-Novel/dp/0593983750] • Breakneck: China’s Quest to Engineer the Future: https://www.amazon.com/Breakneck-Chinas-Quest-Engineer-Future/dp/1324106034 [https://www.amazon.com/Breakneck-Chinas-Quest-Engineer-Future/dp/1324106034] • Apple in China: The Capture of the World’s Greatest Company: https://www.amazon.com/Apple-China-Capture-Greatest-Company/dp/1668053373 [https://www.amazon.com/Apple-China-Capture-Greatest-Company/dp/1668053373] — Production and marketing by https://penname.co/ [https://penname.co/]. For inquiries about sponsoring the podcast, email podcast@lennyrachitsky.com [podcast@lennyrachitsky.com]. — Lenny may be an investor in the companies discussed. To hear more, visit www.lennysnewsletter.com [https://www.lennysnewsletter.com?utm_medium=podcast&utm_campaign=show-notes-no-free-preview-language]

Highlights

Sherwin Wu, who leads engineering for OpenAI’s API platform, discusses how AI is rapidly transforming software development, team dynamics, and startup economics—not as a distant future, but as an operational reality happening now inside OpenAI and across the industry.
00:00
95% of engineers use Codex for coding and 100% of PRs are reviewed by it
03:15
Nearly 100% of code is generated by AI, with 95% of engineers using Codex daily and 100% of PRs reviewed by it
09:26
AI tools act like genies—granting wishes literally, so instructions must be precise to avoid unintended consequences
12:27
Removing the option to not use AI has helped identify problems that need solving for greater agent adoption
17:29
Almost every engineer at OpenAI heavily uses Codex, and the vast majority of code is likely authored by AI
22:16
AI makes good people better and great people exceptional
29:28
Distribution becomes more important as there are many things vying for attention, making those with an audience and platform more valuable
31:45
Spend over 50% of management time with top 10% performers to unblock their progress
40:11
Tools like Codex at OpenAI drove internal adoption by getting employees excited
43:57
Models will eat your scaffolding for breakfast
48:57
Build for where models are going, not where they are today
52:56
Audio/speech will become more important and integral to the AI experience
53:35
There's a large, underrated opportunity to use AI to automate repeatable business processes, integrate with business data and systems, and improve productivity and work methods
57:23
OpenAI views itself as an ecosystem platform company, releases all models through its API, aims to keep the platform neutral, and supports competition
1:03:11
For $20 a month, users get the same Pro model as billionaires, enabling unprecedented AI democratization
1:05:22
The Responses API is popular for building long-running agents
1:15:39
A life motto of not feeling sorry for oneself

Chapters

Introduction to Sherwin Wu
00:00
AI’s role in coding at OpenAI
03:10
The future of software engineering with AI
06:53
The stress of managing agents
12:26
Codex and code review automation
15:07
The changing role of engineering managers
19:29
The one-person billion-dollar startup
24:14
Management lessons
31:40
Challenges and best practices in AI deployment
37:28
Hot takes on AI and customer feedback
43:56
Building for future AI capabilities
48:57
Where models are headed in the next 18 months
50:16
Business process automation
53:35
OpenAI’s ecosystem and platform strategy
57:22
OpenAI’s mission and global impact
1:00:50
Building on OpenAI’s API and tools
1:05:21
Lightning round and final thoughts
1:08:16

Transcript

Sherwin Wu: 95% of engineers use Codex. 100% of our PRs are reviewed by Codex. Lenny Rachitsky: For engineers, I don't know what job has changed more in the past couple of years. Sherwin Wu: Engineers are becoming tech leads. They're managing fleets and ...