Wherever you are in the world, whether it’s morning, afternoon, or night… Rate limits have been reset! Time to build with Codex and GPT-5.5!
@romainhuet
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Function Calls Driving Application State Changes Automatically
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The cursor was added by @jxnlco only to follow along, but it’s purely decorative for the demo! No computer use involved. It’s the function calls that are changing the state of the applications, like filling out the form in JavaScript.
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OpenAI’s Realtime API Demonstrates Fast Speech Recognition and Function Calling
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The Realtime API is fast.
— Romain Huet (@romainhuet) 28 avril 2026
This demo by @jxnlco is running at real speed! No computer use, just realtime speech + function calling.
The model is listening, deciding when to call functions to update state, and yes, it doesn’t always have to talk back! https://t.co/2cK4jzI7rIThe Realtime API is fast. This demo by @jxnlco is running at real speed! No computer use, just realtime speech + function calling. The model is listening, deciding when to call functions to update state, and yes, it doesn’t always have to talk back!
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GPT Image 2 and Codex: Optimal Frontend Workflow
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This is such a great combo!
— Romain Huet (@romainhuet) 27 avril 2026
Designing with GPT Image 2 and then building with Codex + GPT-5.5 feels like one of the best frontend workflows right now. 👌 https://t.co/HZoIHadHweThis is such a great combo! Designing with GPT Image 2 and then building with Codex + GPT-5.5 feels like one of the best frontend workflows right now.
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Building Frontend Experiences with GPT-Image and Codex
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Totally agree! Designing with GPT-Image-2 and then using Codex with GPT-5.5 is one of the best ways to build frontend experiences right now.
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Codex AI Model Achieves Impressive Performance Gains
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Really cool! Letting Codex iterate on perf like this is super interesting. +20 FPS in one Codex task is impressive!
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Codex Builds in Spatial OS with Vision Pro
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Awesome! I need a Vision Pro to try this. Talking to Codex and watching it build in spatial OS is wild!
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Weekend Builds with Codex and GPT-5.5
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Hello builders! What did you build this weekend with Codex + GPT-5.5? Drop it below, I’d love to see what you made!
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GPT-5.5 Unifies Codex Into Single Model With Agentic Coding Gains
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Since GPT-5.4, we’ve unified Codex and the main model into a single system, so there’s no separate coding line anymore. GPT-5.5 takes this further, with strong gains in agentic coding, computer use, and any task on a computer.