Loading video...

Video Failed to Load

Go Home

Head of OpenAI's API: "Codex is really good at reviewing code. Codex reviews all of our PRs. It makes code reviews go from a 10-15 minute task to sometimes a 2-3 minute task, because you have a bunch of suggestions already baked in. For small PRs, you actually don't...

lennysan's profile picture

Lenny Rachitsky

302,440 subscribers

38,764 views • 4 months ago •via X (Twitter)

LIVE

Anya Rossi• Live Now

Private livecam show

0 Comments

No comments available

Comments from the original post will appear here

Related Videos

Reminder: You can use Codex code review as part of your ChatGPT subscription 🙂 1. Head to 2. Connect your GitHub 3. Enable code review 4. Choose between review all PRs, just yours or trigger explicitly with "Codex magazine review this" To not spam you Codex will respond with 👍 unless it finds high priority items. You can use AGENTS.md to shape what a high priority item is.
0:38

Reminder: You can use Codex code review as part of your ChatGPT subscription 🙂 1. Head to 2. Connect your GitHub 3. Enable code review 4. Choose between review all PRs, just yours or trigger explicitly with "Codex magazine review this" To not spam you Codex will respond with 👍 unless it finds high priority items. You can use AGENTS.md to shape what a high priority item is.

dominik kundel

88,982 views • 4 months ago

I stopped using the same AI to write and review code. Claude builds. GPT-5.2 Codex reviews. Result? More bugs caught, real security issues flagged, and better PRs all automated.
6:33

I stopped using the same AI to write and review code. Claude builds. GPT-5.2 Codex reviews. Result? More bugs caught, real security issues flagged, and better PRs all automated.

Mervin Praison

10,891 views • 5 months ago

Starting today you can use Codex in Claude Code 👀 /plugin marketplace add openai/codex-plugin-cc Try it out today with: /codex:review for a normal read-only Codex review /codex:adversarial-review for a steerable challenge review /codex:rescue to let codex rescue your code Enjoy Codex-ing!
0:39

Starting today you can use Codex in Claude Code 👀 /plugin marketplace add openai/codex-plugin-cc Try it out today with: /codex:review for a normal read-only Codex review /codex:adversarial-review for a steerable challenge review /codex:rescue to let codex rescue your code Enjoy Codex-ing!

Vaibhav (VB) Srivastav

953,951 views • 3 months ago

I built a new plugin! You can now trigger Codex from Claude Code! Use the Codex plugin for Claude Code to delegate tasks to Codex or have Codex review your changes using your ChatGPT subscription. Start by installing the plugin:
0:39

I built a new plugin! You can now trigger Codex from Claude Code! Use the Codex plugin for Claude Code to delegate tasks to Codex or have Codex review your changes using your ChatGPT subscription. Start by installing the plugin:

dominik kundel

1,285,233 views • 3 months ago

you don't have to pay for claude code or codex subscription anymore. here's a video guide on how to setup codex or claude code completely for free. the setup takes less that 5mins, the article quoted below has all of the installation codes you need.
2:04

you don't have to pay for claude code or codex subscription anymore. here's a video guide on how to setup codex or claude code completely for free. the setup takes less that 5mins, the article quoted below has all of the installation codes you need.

m0h

75,894 views • 2 months ago

Last week, we hosted Women who Code(x) The output: task agents, personal guides, and a lot of projects shipped with Codex
1:20

Last week, we hosted Women who Code(x) The output: task agents, personal guides, and a lot of projects shipped with Codex

OpenAI Developers

66,326 views • 24 days ago

Excited to release v1 of /review in the Codex CLI! You can now use gpt-5-codex to investigate and find critical bugs in your code. Check it out and let us know if you have any feedback!
0:25

Excited to release v1 of /review in the Codex CLI! You can now use gpt-5-codex to investigate and find critical bugs in your code. Check it out and let us know if you have any feedback!

daniel

742,881 views • 9 months ago

🚨 OpenAI just launched Codex, a brand-new autonomous coding agent that can build features and fix bugs on its own. We’ve been using it Every 📧 for a few days, and I’m impressed. I invited Alexander Embiricos (ben davies), a member of the product staff responsible for Codex, to demo Codex and talk about it live on a special edition of AI & I: What Codex is and how it works Codex is designed to be used by senior engineers—it performs coding tasks like adding features or fixing bugs autonomously. It's built to allow you to start many sessions at once, so you can have multiple agents working in parallel. Codex is built to have "taste" OpenAI trained Codex to have the taste of a senior software engineer. It knows how big codebases work, how to write a good PR, and uses clean, minimal code. Why an “abundance mindset” is best for interacting with agents Codex is designed to allow users to delegate many tasks at once without getting caught up in the details. This lets you point an abundance of agents at a specific task like a difficult bug—it’s worth it even if only one of them succeeds. How OpenAI is thinking about agents Codex is one piece of a unified super-assistant OpenAI wants to eventually build—an agent that helps users easily get things done by selecting the right tools for them behind the scenes. OpenAI’s vision for the future of programming In the future developers will probably spend less time writing routine code and more time guiding agents, reviewing their work, and making strategy decisions. Programming will become more social, letting teams easily delegate multiple tasks at once, allowing people to focus on ideas and collaboration instead of routine coding. Watch below!
44:33

🚨 OpenAI just launched Codex, a brand-new autonomous coding agent that can build features and fix bugs on its own. We’ve been using it Every 📧 for a few days, and I’m impressed. I invited Alexander Embiricos (ben davies), a member of the product staff responsible for Codex, to demo Codex and talk about it live on a special edition of AI & I: What Codex is and how it works Codex is designed to be used by senior engineers—it performs coding tasks like adding features or fixing bugs autonomously. It's built to allow you to start many sessions at once, so you can have multiple agents working in parallel. Codex is built to have "taste" OpenAI trained Codex to have the taste of a senior software engineer. It knows how big codebases work, how to write a good PR, and uses clean, minimal code. Why an “abundance mindset” is best for interacting with agents Codex is designed to allow users to delegate many tasks at once without getting caught up in the details. This lets you point an abundance of agents at a specific task like a difficult bug—it’s worth it even if only one of them succeeds. How OpenAI is thinking about agents Codex is one piece of a unified super-assistant OpenAI wants to eventually build—an agent that helps users easily get things done by selecting the right tools for them behind the scenes. OpenAI’s vision for the future of programming In the future developers will probably spend less time writing routine code and more time guiding agents, reviewing their work, and making strategy decisions. Programming will become more social, letting teams easily delegate multiple tasks at once, allowing people to focus on ideas and collaboration instead of routine coding. Watch below!

Dan Shipper 📧

145,487 views • 1 year ago

AI can write your code. But who’s making sure it’s actually good? CodeRabbit now gives you free, high-quality AI code reviews, right inside your IDE. Supports and integrates with top AI agents like GitHub Copilot, Claude, Codex, Cursor AI, and more. What makes it different: • No subscription needed • Context-aware reviews • “Fix with AI” feature sends feedback directly to your AI coding agent • One-click commit suggestions • 10M+ PRs reviewed, 50K+ installs on GitHub Marketplace CodeRabbit doesn’t just point out issues. It helps you fix them fast.
1:57

AI can write your code. But who’s making sure it’s actually good? CodeRabbit now gives you free, high-quality AI code reviews, right inside your IDE. Supports and integrates with top AI agents like GitHub Copilot, Claude, Codex, Cursor AI, and more. What makes it different: • No subscription needed • Context-aware reviews • “Fix with AI” feature sends feedback directly to your AI coding agent • One-click commit suggestions • 10M+ PRs reviewed, 50K+ installs on GitHub Marketplace CodeRabbit doesn’t just point out issues. It helps you fix them fast.

Rohit Ghumare

32,176 views • 1 year ago

Why choose? Claude Code + Codex CLI running together. Same task. Or split roles. One builds, one reviews. No limits. No picking sides. On BLACKBOX.
1:04

Why choose? Claude Code + Codex CLI running together. Same task. Or split roles. One builds, one reviews. No limits. No picking sides. On BLACKBOX.

BLACKBOX AI

57,193 views • 3 months ago

Codex is now a full video editor! Our new plugin opens a full built-in NLE right inside the Codex app, where you and your agent can edit together, effortlessly. If you're already paying for Codex, you get this one for FREE. It's available now. Start using it in 1 minute, by just telling your Codex: "Turn Codex into a Video Editor, read
1:04

Codex is now a full video editor! Our new plugin opens a full built-in NLE right inside the Codex app, where you and your agent can edit together, effortlessly. If you're already paying for Codex, you get this one for FREE. It's available now. Start using it in 1 minute, by just telling your Codex: "Turn Codex into a Video Editor, read

ChatCut

470,091 views • 3 days ago

🚨 OpenAI's head of engineering just revealed how they actually code in 2026. 80 minutes. free. on Lenny's Podcast. watch it. bookmark it. 95% of their engineers use Codex daily. you still type prompts one at a time. then read the article below.
1:19:39

🚨 OpenAI's head of engineering just revealed how they actually code in 2026. 80 minutes. free. on Lenny's Podcast. watch it. bookmark it. 95% of their engineers use Codex daily. you still type prompts one at a time. then read the article below.

Movez

221,621 views • 2 months ago

Excited to introduce VibeKit 🖖 - an open source SDK to run coding agents like OpenAI Codex or Claude Code — safely, in secure sandboxes. All apps will have need to have coding skills, VibeKit enables you to embed them with a couple of lines of code.
1:16

Excited to introduce VibeKit 🖖 - an open source SDK to run coding agents like OpenAI Codex or Claude Code — safely, in secure sandboxes. All apps will have need to have coding skills, VibeKit enables you to embed them with a couple of lines of code.

homanp

28,527 views • 1 year ago

New Release: Claudex Mode For the first time in mankind claude code and codex will be on the same team On the Blackbox CLI you can send the same task for Claude Code to implement and Codex to verify and test. You can choose more ways where they can collaborate on the same task to get the highest level of performance on your tasks
1:17

New Release: Claudex Mode For the first time in mankind claude code and codex will be on the same team On the Blackbox CLI you can send the same task for Claude Code to implement and Codex to verify and test. You can choose more ways where they can collaborate on the same task to get the highest level of performance on your tasks

BLACKBOX AI

304,664 views • 4 months ago

💡 Friday Codex tip: If you are using the Codex app and regularly find yourself copy and pasting text from error messages or plans from other apps into Codex to start a new task, you can use Raycast deeplinks to map it to a hotkey.
1:36

💡 Friday Codex tip: If you are using the Codex app and regularly find yourself copy and pasting text from error messages or plans from other apps into Codex to start a new task, you can use Raycast deeplinks to map it to a hotkey.

dominik kundel

92,247 views • 4 months ago

Developers coming from other tools are often impressed by what Codex finds in code review. In this video, Maja Trebacz and I show how to set it up and walk through issues Codex finds in real PRs. Included with ChatGPT Plus/Pro (or ~$1/run with credits).
8:19

Developers coming from other tools are often impressed by what Codex finds in code review. In this video, Maja Trebacz and I show how to set it up and walk through issues Codex finds in real PRs. Included with ChatGPT Plus/Pro (or ~$1/run with credits).

Romain Huet

176,606 views • 4 months ago

Opus 4.6 and Codex 5.3 just launched, so I did a hexagon test on both of them Opus 4.6 - 1M context - great for research + enterprise work - agent teams + long-range reasoning - weaker on raw code benchmarks Codex 5.3 - wins coding benchmarks - faster + mid-task steering - smaller context window TLDR: Opus = depth + orchestration Codex = speed + code
0:20

Opus 4.6 and Codex 5.3 just launched, so I did a hexagon test on both of them Opus 4.6 - 1M context - great for research + enterprise work - agent teams + long-range reasoning - weaker on raw code benchmarks Codex 5.3 - wins coding benchmarks - faster + mid-task steering - smaller context window TLDR: Opus = depth + orchestration Codex = speed + code

Abhinav

447,873 views • 5 months ago

Clawdbot creator Peter Steinberger 🦞 says Claude Opus is his favorite model, but OpenAI Codex is the best for coding: "OpenAI is very reliable. For coding, I prefer Codex because it can navigate large codebases. You can prompt and have 95% certainty that it actually works. With Claude Code you need more tricks to get the same." "But character wise, [Opus] behaves so good in a Discord it kind of feels like a human. I've only really experienced that with Opus."
1:47

Clawdbot creator Peter Steinberger 🦞 says Claude Opus is his favorite model, but OpenAI Codex is the best for coding: "OpenAI is very reliable. For coding, I prefer Codex because it can navigate large codebases. You can prompt and have 95% certainty that it actually works. With Claude Code you need more tricks to get the same." "But character wise, [Opus] behaves so good in a Discord it kind of feels like a human. I've only really experienced that with Opus."

TBPN

442,659 views • 5 months ago

Codex is having a moment....and feels a bit like Claude at the beginning of the year. Builders are noticing first, Wall St/consensus will take a bit to catch up Matan Grinberg from Factory says he switched from Claude Code to Codex ~2 months ago and that OpenAI’s coding models are “really really good right now”
0:41

Codex is having a moment....and feels a bit like Claude at the beginning of the year. Builders are noticing first, Wall St/consensus will take a bit to catch up Matan Grinberg from Factory says he switched from Claude Code to Codex ~2 months ago and that OpenAI’s coding models are “really really good right now”

Deirdre Bosa

21,927 views • 1 month ago

Reviewing AI-generated code is the new bottleneck. Writing code was slow before. Now, in a few minutes, you can generate virtually unlimited lines of code using AI. But developers are now spending 70% of their time checking that code. That's the new bottleneck. I've been using Cline, and they have a feature that actually helps with this: You can click a button and have Cline generate an inline explanation for every single line of AI-generated code. Take a look at the attached video. What it does: 1. You can read the code and the explanation together 2. You don't lose context while reviewing code 3. You understand the "why" behind each change And here is the best part: It works on any git diff. You can use it to review PRs, understand commits from other people, or catch up on a codebase you haven't touched in a while.
3:25

Reviewing AI-generated code is the new bottleneck. Writing code was slow before. Now, in a few minutes, you can generate virtually unlimited lines of code using AI. But developers are now spending 70% of their time checking that code. That's the new bottleneck. I've been using Cline, and they have a feature that actually helps with this: You can click a button and have Cline generate an inline explanation for every single line of AI-generated code. Take a look at the attached video. What it does: 1. You can read the code and the explanation together 2. You don't lose context while reviewing code 3. You understand the "why" behind each change And here is the best part: It works on any git diff. You can use it to review PRs, understand commits from other people, or catch up on a codebase you haven't touched in a while.

Santiago

64,399 views • 7 months ago