OpenAI Codex, every mention
24 scenes (2026) · ← back to OpenAI Codex
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every year 2026 anyone Garry Tan 20Calvin French-Owen 12Diana Hu 4Peter Steinberger 3Sam Altman 2Michael Truell 2Aravind Srinivas 2Spencer Skates 1Pete Koomen 1Mukund Jha 1
Verbatim, from the transcripts: the passages where OpenAI Codex comes up
Multi-GPU Kernels, Intelligence per Watt, Heterogeneous Inference, and More | YC Paper Club · Y Combinator
- ▶ 44:59 unnamed speaker Um, I can tell you about, like, what I think are some important open problems that I don't think, like, get enough, nearly enough attention that are very different from, like, just, like, asking codex to go cook.
Sam Altman: "Never a Better Time to Do a Startup" · Y Combinator
- ▶ 1:37 Sam Altman You know, it's, I think you could either be sad and be like, oh man, like a Codex prompt is a whole startup, or you could be like, I can go start the world's most ambitious, crazy company.
Jensen Huang: The Mindset That Built NVIDIA · Y Combinator
- ▶ 25:23 Jensen Huang We have, you know, Boris is in the back, and, and we, we've got cloud code autonomously running in sandboxes all over NVIDIA, and that's really fantastic, and some people use codex, some people use cloud code, some people use cursor, some…
The Age Of The 40-Year-Old Solo Founder Is Here · Y Combinator
Inside YC's AI Playbook · Y Combinator
- ▶ 12:19 Pete Koomen The harnesses that have gotten really popular, right, uh, Claude Code, Codex, Pi, OpenClaw, Hermes, they're all,
Tokenmaxxing: How Top Builders Use AI To Do The Work Of 400 Engineers · Y Combinator
How to Make Claude Code Your AI Engineering Team · Y Combinator
AI Is Unlocking Millions Of New Builders · Y Combinator
- ▶ 33:16 Mukund Jha Like, for example, you know, um, Opus is obviously a workhorse, um, you know, like, um, Codex is really good in back-end debugging.
OpenClaw Creator: Why 80% Of Apps Will Disappear · Y Combinator
- ▶ 19:00 Peter Steinberger Like, I, I love codex, because it, it looks through way more files before, before it decides what to, what to change. 3 times in the scene
We're All Addicted To Claude Code · Y Combinator
- ▶ 1:01 Garry Tan He's one of the first people to create codecs at OpenAI.
- ▶ 1:55 Garry Tan Because you're, I mean, right out there at the forefront of it, I mean, Codex pioneered all of the, a lot of the ideas that now, like, everyone still uses, and Codex is still evolving too.
- ▶ 2:07 Calvin French-Owen For brief context, when I was at OpenAI, um, I was working on the Codex web product. 2 times in the scene
- ▶ 4:19 Diana Hu And I think the fascinating thing is because it's on the terminal is the purist form for composable atomic integrations, because if you came from, uh, ID first world, which is where cursor was, and I suppose codex too, this concept of, uh,…
- ▶ 5:31 Garry Tan I mean, I really like how clean a sandbox conceptually is in Codex, but then I just ran into all these crazy issues, like trying to do, you know, run just simple testing, right? 2 times in the scene
- ▶ 6:26 Calvin French-Owen Like thinking about a cursor or a cloud code or a codex CLI, the fact that you can just download it and use it without having to get IT permissions or anything makes a huge difference.
- ▶ 10:10 Calvin French-Owen I'll like clone the repo and then spin up codex or cloud code and be like, Hey, give me a walkthrough of what's going on here.
- ▶ 11:25 Calvin French-Owen If you look at a codex or a cloud code, uh, they actually just use like grep.
- ▶ 14:28 Calvin French-Owen Um, I use the cursor bug bot has gotten quite good and I actually like codex for code review as well.
- ▶ 17:17 Calvin French-Owen It's actually interesting, the codex approach is kind of the opposite, and they just wrote about this on the OpenAI blog. 4 times in the scene
- ▶ 18:17 Garry Tan Like, are we at 24 hours or 48 hour running jobs on Codex, and that architecture is correct for that world?
- ▶ 32:13 Calvin French-Owen Like, I'll just tell the quad or codex what to do, and then
- ▶ 40:37 Calvin French-Owen Refreshing complex UI state and Opus often will miss it if there's many files, but Codex seems to catch it.
- ▶ 41:42 Garry Tan I guess what's funny is I tried to use Codex just now, uh, for my Rails project, but the thing is like, it's kind of obvious that nobody at OpenAI cares about Rails, which is fine. 4 times in the scene