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Matrix digital rain · gpt-4.1-mini

Create the Matrix digital rain effect on a full-screen black canvas: columns of falling green katakana glyphs with a trailing fade and a brighter leading character.

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transcript · 4 messages
user

Create the Matrix digital rain effect on a full-screen black canvas: columns of falling green katakana glyphs with a trailing fade and a brighter leading character.

assistant
write index.html (2276 bytes)
toolResult

Successfully wrote 2276 bytes to index.html

assistant

I created a full-screen black canvas with the Matrix digital rain effect. Columns of green katakana glyphs fall with a trailing fade and a brighter leading character at the front. The entire effect is self-contained in the file named index.html. Would you like me to open or run it for you?

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-4.1-mini
vendorOpenAI
harnesspi-agent
generated2026-08-01

EVALUATION

4/5 working

Classic Matrix digital rain with green katakana columns, bright leading chars, and fading trails; animates continuously but ignores input.

Vision grade · anthropic/claude-sonnet-5

MEASUREMENTS

Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.

idle motion32.8%
on click42.6%
on drag44.5%
on wheel47.1%
on enter + space52.9%
on arrow keys51.1%
on w/a/s/d48.6%
frame spread16.8 / 255
console errors0
js errors none

METRICS

runtime16.0s
tokens in3.1k
tokens out899
cached0
cost / run$0.0027