The Codex app with GPT-5.5 is a great combo for founders!
@romainhuet
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Building Ethereum ZK Rollups: Developer Experience in Codex
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Welcome to Codex! Would love to hear more about your experience building for Ethereum and ZK rollups in Codex!
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OpenAI Invests Love and Care into Codex Development
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Appreciate it! Lots of love and care going into Codex right now
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Rate Limits Reset for Codex and GPT-5.5 Developer Tools
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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!
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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.
