I just dropped GPT-5.5, and let me tell you, the hype is real.

@radnolan

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GPT-5.5

We believe our research will eventually lead to artificial general intelligence, a system that can solve human-level problems.

2 videos2 creators

Why it worked

The video succeeds by showing a tangible, creative output (the music garden) built using the tool, rather than just listing features, which makes the AI's capabilities feel practical and impressive.

Summary

The creator demonstrates how they used the new GPT-5.5 AI model to brainstorm, design, and build a collaborative music garden game within the Codex development environment. The video highlights the model's ability to handle complex user experience mapping and iterative design improvements.

Structure

1Introduction to GPT-5.5 and the project idea
2Brainstorming the game concept in ChatGPT
3Mapping out the user experience and architecture
4

Original caption

Built a tiny community music garden with Codex using the new GPT-5.5 Started in ChatGPT with a rough idea, ended up mapping the full UX, sound system, drawing flow, moderation logic, and then building the first prototype. There was a lot of moments where I was genuinely surprised by what the new model was asking / making for me. GPT-5.5 is available now in ChatGPT and Codex. Go try it! @openaidev #ChatGPTPartner

More from @radnolan

Product placement

The video is a direct demonstration of using GPT-5.5 within ChatGPT and Codex to build a software project.

Call to action

You can build with GPT-5.5 right now in Codex and ChatGPT, so go give it a try.

On-screen text

GPT 5.5 first looks Set the tone Draw the sound Planting spot This spot is singing. Plant here Move spot Intelligence Model Instant 5.3 Thinking 5.5 Pro 5.5 Auto-switch to Thinking Introducing GPT-5.5 Try GPT-5.5 now What should we build in New project 2? Best with headphones Sound Garden Create your flower Unmute What a beaut! GPT-5.5

Transcript

I just dropped GPT-5.5, and let me tell you, the hype is real. Here's what I built with it. So I was in ChatGPT and I was like, I want to build a simple community game in Codex, maybe something with music. Give me ideas. It gave me five ideas, each better than the last. One of which was a better version of an idea I had a few months ago. You draw in a community garden and based on your drawing, you add to the community sound. So we started brainstorming and this is where it blew me away. I switched to the GPT-5.5 Pro model and usually when I do this flow, it asks me questions that are pretty obvious in hindsight. But after 76 questions, we had mapped out almost every detail of the user experience. How the music would get made, how the drawing would happen, and how the architecture would work so it could support lots of users and moderate them automatically. Time for Codex. I switched to GPT-5.5 with the extra high intelligence setting. I dropped in a summary of the brainstorm and told it to implement the first stage of the concept. The core experience was really solid out of the box, but it needed some vibes. So back to ChatGPT where I explained what it sounded like and what I wanted it to sound like. Then asked for a Codex prompt to help me guide it. Back to Codex, a few minutes later and it sounded like a Zen garden. But we needed to rework the design. I redesigned every screen to add more padding and simplify all the touch points and I had it guide me on how to add a custom texture so every flower would feel hand-drawn. I dropped in a few flowers and wow, that's beautiful. You can build with GPT-5.5 right now in Codex and ChatGPT, so go give it a try.