TLDR Tech / Practical
OpenUI: How ChatGPT renders interactive interfaces in conversations
This technical analysis explains the functionality of ChatGPT's Intelligent UI, introduced with GPT-6 in October 2026, which displays interactive elements directly within chat threads. It achieves this using Markdown, JSX-like syntax, and JavaScript, with tasks divided between the AI model, OpenAI's servers, and a secure client environment executing compiled code to update design system components. The author points out drawbacks such as state loss upon refresh, silent logic errors, and significant data transfer for code updates.
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