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Exhibit No. 020 · 3D worlds

Earth to Mars and back

The demo from the Grok 3 launch stream: animate a launch from Earth, a landing on Mars and the return at the next launch window.

Prompt

> Generate code for an animated 3d plot of a launch from earth landing on mars and then back to earth at the next launch window as a single self-contained HTML file using three.js

What it tests

Real orbital mechanics: Hohmann transfers, launch windows and timing that match the physics.

Origin

xAI Grok 3 launch demo (KCORES benchmark) · 2025

Prompt wording adapted from the original.

Difficulty

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Results

Claude Opus 5.5

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

One attempt per test, with no edits after running. Where a first attempt didn’t work, the test was answered once more and the exhibit says so; answers that still don’t work are not shown. 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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