Introducing MIRA. A playable, multiplayer world model. A dream of Rocket League. Trained on 10k hours of data collected with publicly available bots, MIRA learns the dynamics of a four-player game. The model runs in real time at 20 fps, based on the keys you and the other playe…↗

recommended viewing. one more time, on it's own. this is probably yhe most practical talk on using coding agents i've watched to date. watch it. by @lucasmeijer it's also a great demo of pi and captures exactly why i built it. youtu.be/fdbXNWkpPMY?si…↗

🚨 Hello! This post reached beyond its original audience. If you're wondering why you'd want dancing balls while reading: you don't. It's a demo to showcase the expressivity & performance of the system for designers & engineers For immediate benefits, see x.com/_chenglou/stat…↗

For the GPT-5.4 launch, we overhauled our computer use demo to give folks the ability to try out the new features across different use cases. You can test drive a kanban board, hotel booking site, or paint app. Or clone the repo and add your own! Built with Codex™↗

fyi: you can build your own claude cowork style apps with claude agent sdk! i’ll be open sourcing my app this week. i’ve been hacking on it for a while, and i think it’s actually really good! this app format will be the ai app-layer trend of the year. watch for a 4min demo.↗