tweet2026-04-25c/KaQmMPY3

This guy literally built a whole app in one day using GPT-5.5.

by Julian Goldie SEO @JulianGoldieSEO

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# This guy literally built a whole app in one day using GPT-5.5.

**Author**: Julian Goldie SEO ([@JulianGoldieSEO](https://x.com/JulianGoldieSEO))

**Date**: 2026-04-25

**Source**: https://x.com/JulianGoldieSEO/status/2048119204822569426

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This guy literally built a whole app in one day using GPT-5.5.

OpenAI just released this giant update.

It destroys Claude Code and GitHub Copilot in every test.

You might feel like AI is moving too fast.

But this actually makes things much easier.

You do not need to hire expensive coders.

Open ChatGPT, type your idea, and let the AI build it.

![](https://pbs.twimg.com/amplify_video_thumb/2048115942820073473/img/gHDkWcqw19WMbGs0.jpg)

or press ⌘K