Mandelbrot explorer · gpt-5.4-nano

Output generated Cost / run $0.0073 Runtime 39.5s

Prompt for this run

Render the Mandelbrot set with a smooth color gradient on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom.

⛨ sandboxed Open in new tab ↗

TAKE IT TO CODE

A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.

RUN

modelgpt-5.4-nano

vendorOpenAI

harnesspi-agent

generated2026-07-22

METRICS

runtime39.5s

tokens in6.7k

tokens out4.8k

cached0

cost / run$0.0073

Transcript · 4 messages

user

Render the Mandelbrot set with a smooth color gradient on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom.

assistant

thinking

**Writing index.html for Pan functionality**

I’m thinking about how to implement the pan feature. On mousedown, I'll need to record the starting complex position. Then, as the mouse moves, I’ll adjust the center accordingly. I also want to make sure it supports resizing, so I’ll keep that in mind while working on the code. There seems to be a lot to consider here, but I’m ready to get started on writing the index.html file!

→ write index.html (14474 bytes)

toolResult

Successfully wrote 14474 bytes to index.html

assistant

Created `index.html` with a full-screen Mandelbrot set renderer on a canvas, using smooth gradient coloring, with: - **Click + drag** to **pan** - **Mouse wheel** to **zoom** (zoom centered on cursor) - **Double-click** and **press `0`** to reset view File: `./index.html`