Me talking to developers two weeks ago who wanted... a faster Codex. That was before Codex-Spark! ✨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

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

The model is faster, the pelican isn't as good!... GPT-5.3 Codex Spark on the left, GPT-5.3 Codex 5.3 on the right - both at medium quality settingsshow 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

Codex Spark, The Context Killer (video is NOT sped up)

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

They're finally here. GPT 5.1 Codex and Codex Max... are now in Warp, from Low to XHigh reasoning ✨show more

Asking Codex (GPU) to find and kill Codex (Cerebras)

fal is an official launch partner for OpenAI's new... role-specific plugins in Codex, live today. With fal in Codex, creative teams can pull models, assets, and workflows from fal directly into Codex sessions. Faster from a question or brief to useful output, without leaving the agent.show more

Killer new Codex feature that went unannounced: Codex can... now coordinate threads for local projects/worktrees. Includes separate background threads. Transforms Codex into a meta-agent that can orchestrate its own workspace.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

Got my dog as a Codex pet, but more... interestingly got Codex to add the rings to show my Codex limits. Outer ring is 5 hours, inner the weekly oneshow 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

Inspired by @levelsio's flight sim that he built almost... a year ago, I wanted to see what was possible today So this weekend I built one over actual San Francisco with Claude & Codex Dogfight through the real Golden Gate Bridge with strangers:show more

I just got Codex to reverse engineer the Control+M... speech-to-text mode in the Codex app and build a Mac app that lets you run it anywhere. The demo is me making this tweet right now.show more

Introducing `images-taste skill` Now that GPT images v2 is... out a new method of creating frontend in Codex has emerged. generate images -> codex analyzes them -> codex builds the website available here:show more

GPT 5.3 vs Opus 4.6: a second win for... Opus! ✔︎ Opus builds the file 2x faster ✔︎ Opus nails a good first version ❌ Codex needs 3x "fix bugs" to have a first working version ❌ Codex UI looks really bad Let's try more things....show more

I've played a bit more with Codex + making... games. This is a little Vampire Survivor inspired games, all with Codex + ImageGen and a small spec from me! CodexSurvivor!show more

You can now summon Codex from anywhere on your... desktop. It's easier than ever to reach for Codex.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