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

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

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

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

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

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

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

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

They are side-by-side at the line! Justin Allgaier wins... Stage 2 at Indianapolis Motor Speedway.show more

The Codex app-server is underrated! The prompt worked and... 1.6k lines of Visual Basic later we have a fully working app including streaming and using your ChatGPT subscription And yes the actual Codex app for Windows is coming 🙂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

How Tripwire genuinely does my ass when I dare... to try healing when I’m on the other side of the mapshow more

this is the greatest thing ever!!! i dont care... at all how much water, dollars and jobs it took to get here! this is the kind of stuff we need more of hats off codex teamshow more

Private MCP servers 🤝 OpenAI products Your team can... keep MCP servers inside your network while ChatGPT, Codex, and the Responses API connect through outbound-only HTTPS. 🔗show more

Alrighty, everything is ready 😎 here’s an unofficial “2x... Codex limits” promo from my side for you all. meet DevSpace — an MCP connector app that turns ChatGPT into Codex. npm install -g @waishnav/devspace After installing, tunnel the MCP server over the internet and enjoy 2x limits. You can use GPT-5.5 Pro, xHigh, or High for planning, then hand off the task to your local Codex/pi/opencode/cursor/claude code instance. Or you can just use it for reviewing code written by other local coding agents Go ahead, experiment with different workflows, and keep the feedback coming on GitHub Issues or in my DMs And let’s thank OpenAI for being so generous by giving us separate ChatGPT and Codex limits and by being so chill around this MCP :) Please use it sparingly, only when you run out of limits. Don’t overuse it — in the end, they do have a button to stop it 🙂show more

not only that didn’t happen. During Mantra, we hyped... everyone joined the challenge, lit the msg of the song, trying to come at Jennie’s dance when this is her and the Mantra choreographer side by sideshow more

Working on a “Hand-Off to Mac” way to load... the chats from the Codex Remote Control for iOS app to the Codex App Codex app-server doesn’t quite support a live update So I decided to find a workaround A button that forces the closing of the Codex App and reopening it in the chat created from iPhone Would you use this button?show more