Codex

includes Codex CLI

9 statements across 5 episodes · 5 bullish · 0 bearish · 4 people on the record · first statement Jun 11, 2025 by Michael Truell · said 8 times in 5 episodes since 2026 · across every show →

Mentions by year, the whole family

brought up most by Peter Steinberger (2), Calvin French-Owen (2), Garry Tan (1)

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2026 8 mentions in 5 episodes 2 per episode

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Everything said about Codex, oldest first

Jun 11, 2025 neutral
Assertion Not checkable as stated
Truell: OpenAI's original Codex model cost roughly $100,000 to train
“Is we did the back of the envelope math for what Codex, the first coding model, costed to train. From my memory, it only cost about 90 K or a hundred K by our calculations.”
Michael Truell Jun 11, 2025 ▶ 20:50 Cursor CEO: Going Beyond Code, Superintelligent AI Agents, And Why Taste Still Matters · Y Combinator
Jun 21, 2025 bullish
Prediction Not checkable as stated
Altman: AI models like o3 can act as junior employees executing multi-hour tasks
“But now you start to see things where you can like really give a task to Codex, for example or to deep research, and you have this thing go off and do a bunch of stuff and come back to you with like a proposal. It's like a very junior employee that can work on…”
Sam Altman Jun 21, 2025 ▶ 19:29 Sam Altman: The Future of OpenAI, ChatGPT's Origins, and Building AI Hardware · Y Combinator
Sep 3, 2025 neutral
Assertion Not checkable as stated
Truell: OpenAI's Original Codex Model Cost Around $100,000 to Train
“By our calculations, Codex, which was the first, this was the first autocomplete model behind GitHub Copilot, it didn't really cost that much money to train, even though, even back then, at kind of the beginning and middle of 2022, people were talking about ho…”
Michael Truell Sep 3, 2025 ▶ 16:36 Michael Truell: Building Cursor At 23, Taking On GitHub Copilot & Advice To Engineering Students · Y Combinator
Feb 6, 2026 neutral
Assertion Supported
French-Owen: Claude Code and Codex Use Grep Rather Than Semantic Embeddings
“Like I think cursor takes an approach where they actually do semantic search, where they embed everything and figure out like, Hey, what query is closest to this? If you look at a codex or a cloud code they actually just use like grep.”
Calvin French-Owen Feb 6, 2026 ▶ 11:16 We're All Addicted To Claude Code · Y Combinator
Feb 6, 2026 bullish
Prediction Not checkable as stated
French-Owen: Future coding will feel like delegating tasks to coworkers
“Hey, in the future coding is really going to feel more like talking to a coworker. Like you're going to send off a question and then they'll go off and do something and come back to you with a PR.”
Calvin French-Owen Feb 6, 2026 ▶ 2:26 We're All Addicted To Claude Code · Y Combinator
Feb 6, 2026 positive
Assertion Supported
French-Owen: Codex Uses Periodic Compaction to Support Long-Running Tasks
“Where it will run compaction, like, periodically after each turn, and so Codex can continue to run for a very long time, and if you look at the percentage in the CLI, you'll see it, like, move up and down as compaction runs.”
Calvin French-Owen Feb 6, 2026 ▶ 17:23 We're All Addicted To Claude Code · Y Combinator
Feb 6, 2026 positive
Opinion
French-Owen: Cursor BugBot and Codex perform very well at code review correctness
“I use the cursor bug bot has gotten quite good and I actually like codex for code review as well. I find it does a very good job on correctness.”
Calvin French-Owen Feb 6, 2026 ▶ 14:28 We're All Addicted To Claude Code · Y Combinator
Feb 6, 2026 positive
Assertion Not checkable as stated
French-Owen: OpenAI Codex performs particularly well on Python monorepos
“Codex works very well on Python mono repos.”
Calvin French-Owen Feb 6, 2026 ▶ 42:46 We're All Addicted To Claude Code · Y Combinator
May 8, 2026 neutral
Opinion
Tan: Claude models are very good but not the smartest
“Claude Code is ideal for the ADHD CEO, but once in a while, there's a, you know, Claude Code will just BS a bunch of stuff, like Claude models are very, very good, but like, they are not the smartest, it turns out.”
Garry Tan May 8, 2026 ▶ 17:21 Tokenmaxxing: How Top Builders Use AI To Do The Work Of 400 Engineers · Y Combinator
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