one of my greatest joys these last couple months has been following along with lopopolo's work from afar. he's doing some of the coolest applied ai work i've seen in the course of building products; a truly agi-pilled approach to creating.

Software development is undergoing a renaissance in front of our eyes. If you haven't used the tools recently, you likely are underestimating what you're missing. Since December, there's been a step function improvement in what tools like Codex can do. Some great engineers at

So I spent the last 12 hours using Codex 5.3, and it was the most productive day of my life - and it was all recorded! I have worked on 4 different projects: → a retro game engine → a new compiler for Bend2 → a networking library → a server deployment I can't overstate how

I'm so excited to share how I've been working for the last 9 months. Codex is capable of doing the job—the entire job. My team and I have made "get Codex to do the job" our only job; magical things have happened as a result. openai.com/index/harness-…

GPT-5.3-Codex-Spark is now in research preview. You can just build things—faster.

Introducing GPT-5.3-Codex-Spark, our ultra-fast model purpose built for real-time coding. We’re rolling it out as a research preview for ChatGPT Pro users in the Codex app, Codex CLI, and IDE extension.

OpenAI Codex-Spark powered by Cerebras You can now just build things faster—at 1,000 tokens/s.

GPT-5.2 derived a new result in theoretical physics. We’re releasing the result in a preprint with researchers from Institute for Advanced Study (IAS), Vanderbilt University, Cambridge University, and Harvard University. It shows that a gluon interaction many physicists expected would not occur can arise under specific

Peter Steinberger is joining OpenAI to drive the next generation of personal agents. He is a genius with a lot of amazing ideas about the future of very smart agents interacting with each other to do very useful things for people. We expect this will quickly become core to our

It's been a huge month for Codex. 5.3, Spark, Codex app, OpenClaw. We're accelerating. Looking for top people in: - Full stack Typescript - Design engineering - Windows experience+distribution - React+Node performance - Crazy advanced git - Agent orchestration - Remote codex -

One thing I feel not enough people know is that the Codex agent is open source. It also exposes an app-server interface that lets you integrate Codex into your application including sign-in with ChatGPT. It's the same server that powers Codex in VSCode, Jetbrains and Xcode

Come work with us!

codex app-server is legit af i was just looking into it for a project and accidentally ended up making an actual native codex iphone app i can spawn and talk to codexes anywhere on my network and one of the best parts... I built and linked codex into the actual iphone app and

Harness engineering is a big mindset shift. You are a tool for the model. Not the other way around.

tune in at 9.10 pst!

Here's some native code magic on how we enabled icon switching in Granola's Electron app granola.ai/blog/so-you-th…

From agile startups to tech titans, London is the place to be. OpenAI’s move to build its biggest international research hub here is a major vote of confidence in our capital as a global centre for innovation and investment ⬇️

I'd like to answer questions about our work with the DoW and our thinking over the past few days. Please AMA.

we made Granola work in a web browser so everyone, including non-engineers, can use Cursor/Claude on Slack to push fixes, make changes, and test instantly. Granola is an Electron app so previously testing changes had a LOT of friction. here's how we improved it 🧵