Build an artificial life simulator in one HTML file
Linked example of build an artificial life simulator in one HTML file. Four Grok 4.20 (Beta) agents received the prompt to create one self-contained HTML file simulating hundreds of glowing neon particles across six cyberpunk colors, with a 6x6 matrix of attraction/repulsion sliders, click-to-spawn controls, randomize button, pause/speed/particle-count toggles, and optional trails plus dark UI effects.
- Agent or tool
- Grok Bot
- Topic
- Productivity
- Reported on
- X
- Added
- 2026-10-15
Why it matters
Small, repetitive tasks eat more of the week than anyone likes to admit. Cases like this show an agent taking a chore off someone's plate end to end, not just suggesting what to do. It is one of 196 sightings filed under Productivity on Agent Sightings (number 149 by interest), and one of 85 involving Grok Bot.
How you could try it
Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into Grok Bot or any similar agent and adjust the details to your situation.
Help me build an artificial life simulator in one HTML file. Break it into steps, show your work, and wait for confirmation before anything irreversible, paid, or outbound.
Tip: Start small: run it once on a low-stakes example, read what the agent did, and only then let it run on real work.
Source
Read the original first-hand account on X: https://x.com/tetsuoai/status/2023797266826621372. Our summary is a paraphrase; details are in the source.