the codex team at OpenAI Developers Can we reduce... the min width of the codex window? when I try to place 2 windows side by side, they never align.show more

One of the top pieces of feedback we get... about OpenAI Codex: “make it faster”. We addressed it in a big way with our ultra fast Codex-Spark model (research preview for Pro). Available in the latest Codex app, CLI, and IDE extension. Here’s Spark vs 5.3-Codex-Low side-by-side (Credit Romain Huet for the initial idea).show more

lots of updates to the OpenAI Developers codex physical... hardware build at this point, i'm simply steering gpt-6 astra to my preferences while codex handles the CAD & build documentation codex--give the ppl a reference for the robot's size 😎show more

2 quality-of-life improvements for developers working with Codex today:... Codex background agents now have stable pixel identicons. When the same agent shows up across tabs, mentions, transcripts, and the thread panel, it’s easier to recognize at a glance.show more

10 minutes later, GPT-5.3-Codex-Spark has my Raptor Call of... Shadows clone artwork integrated! Here's the beach map. Artwork created with imagegen Skill in Codex app. OpenAI Developersshow more

remade with Codex + HyperFrames, 1-shot who won? Claude... Design by Claude or Codex by OpenAI Developers lemme know in comments - also full prompt in threadshow more

GBC is a bit hard to work on. It’s... lacking the colors I want since it can only handle so much. I asked Codex ModRetro Chromatic plugin to port over the art and some gameplay to GBA instead and 🤩 Here’s a side-by-side comparison.show more

Codex X Gaming! ❤️‍🔥 First look at the ModRetro... Chromatic 🎮 The new OpenAI handheld device we got at DevDay!show more

Today is my first day at OpenAI! I'm joining... the Codex team. I'll be splitting my time between building the Codex app and working with developers/entrepreneurs to help them make the most of Codex. As a Y Combinator alum, I'm really looking forward to working with early-stage startups and couldn't be more energized about OpenAI's $2M investment in new YC startups. Despite OpenAI being the largest company I've been part of, it certainly feels like Sam Altman, Greg Brockman and the whole Codex team are in founder mode. I've never seen another startup move as fast as this team does. I'm truly honored to be joining such a brilliant team. As always, it's all about the people... so I'd like to thank Romain Huet, dominik kundel, corey.ching, Andrew Ambrosino, Alexander Embiricos, Tibo, and the rest of the Codex team for their trust. And thanks to Pankaj Gupta, Gilad Mishne, and Will Horn for believing in me, bringing me back to Silicon Valley after almost ten years, and giving me the opportunity to learn about AI.show more

It's never been easier to do everyday work with... Codex. Choose your role, connect the apps you use every day, and try suggested prompts. Codex helps with everything from research and planning to docs, slides, spreadsheets, and more.show more

I built an escape room game with Codex. It... features my cute OpenAI Developers dot solving puzzles on the ModRetro Chromatic. SOUND ON 🔊show more

You can now customise sections in the Codex and... ChatGPT desktop app. Group your chats, then drag sections into whatever order works for you. ChatGPT OpenAI Developersshow more

I’m joining OpenAI Codex to work on the future... of agentic development! At Cursor, I got to see the shift from autocomplete to agents. The next step isn’t a better IDE. It’s an Agent Development Environment (ADE): systems and tools for orchestrating agents, reasoning over their outputs, and making them autonomous enough to reliably complete ambitious work. After chatting with Alexander Embiricos and Tibo, it was clear that Codex is the best place to realize this vision. The team has consistently shipped SOTA models for agentic coding (check out gpt-5.3-codex) and I’m pumped for the future that the new Codex App points to. What I’m most excited about is the broader mission: accelerating the knowledge work economy. All agents are coding agents, and we’re already seeing Codex used across every job function within organizations. I’m extremely grateful for my time at Cursor, working with the incredible team, and I’m proud of what we built together. I’m excited to take an even bigger swing with Codex. If you’re curious to get a glimpse of where we are headed, download the Codex App! If you want to work on this mission, please apply or reach out - we are hiring across all functions! You can just build things.show more

New design in the Codex app which kind of... sucks: Now ALL the tool calls are collapsed inside a single item, which makes it hard to see wtf is going on. Can this be configurable so we can have it uncollapsed like it was before? OpenAI Developers Tiboshow more

OpenAI clearly studied Claude Code when building this new... reasoning slider for the upcoming Codex update. What do we think?show more

How to actually get the most out of Codex... instead of bookmarking another great guide you’ll never open again: We turned this article into an interactive workbench. Before prompting Codex, open the workbench, choose your task type, and check whether you’re using the right Codex capabilities. Built by Codex inside Open Design. If you want the workbench, reply “Open Design” below and I’ll send it to you.show more

interesting background: Tibo (hiring) - eng lead for codex... at OpenAI - 2010: made the final of the first Belgian olympiad of informatics and finished 22nd in the higher ed category - 2014-15: was at N-SIDE building predictive models for clinical trial supply chains - 2015: swe at google - 2017: senior swe at google - 2018-2024: deepmind (incl ml workflow lead, gemini human data lead). co-author on the gopher and reverb papers - 2024: joined openai - 2026: codex now has >1M WAUs video: Tibo with Greg Brockmanshow more

codex robot build update: this is the result of... a ~12hr overnight task by gpt-6 astra on max reasoning; devil is in the details i plan to design thru weekend, then start making parts early next week peep the custom pcba for the canbus lighting controllers OpenAI Developers 👀show more

The Codex lead at OpenAI Tibo says you don't... need to be good at prompting in the future. You just need to be yourself.show more

The NCR is the only place on the planet... that can boast of two Venices side by side. Gurugram and Delhi. Well done folks. Great fillip to Brand India.show more