All tests

Exhibit No. 009 · Animation

Supernova explosion

A star swells, collapses and explodes, leaving a glowing remnant and a spinning pulsar.

Prompt

> Create a supernova explosion animation in a single HTML file.

Run it in your AI

Opens with the prompt filled in — you press send.

ClaudeChatGPTCursorLovablebuilds a live preview
Claude Code
claude 'Create a supernova explosion animation in a single HTML file.'
Codex CLI
codex 'Create a supernova explosion animation in a single HTML file.'
Any agent
Fetch https://aitestmuseum.com/prompts/supernova.txt and complete the task it describes in a single attempt. Save your answer as one self-contained HTML file.

What it tests

Visual storytelling with nothing but code: stages, pacing and a convincing glow.

Origin

AI/ML API model comparison · 2026

150K views on the original post

Prompt wording adapted from the original.

Difficulty

●●●

Results

Verdicts are our own assessment of each answer.

Claude Opus 5.5

Pass
Run on 2026-10-19Open the raw answer
Test conditions

Single attempt per test, no retries and no edits afterwards. Run inside a Claude Code agent session, which includes its own system prompt, rather than the raw API.

All results for Claude Opus 5.5

Save the answer as a .html file and open it in a browser to compare it with the one above.

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