Double pendulum · gemma-4-26b-a4b-it

Simulate a chaotic double pendulum on a canvas using the correct equations of motion, drawing the arms and a colorful fading trail of the tip.

⛨ sandboxed Open in new tab ↗

transcript · 1 messages

assistant

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

modelgemma-4-26b-a4b-it

vendorGoogle

harnesspi-agent

generated2026-07-22

EVALUATION

★★★★★ 1/5 broken

Canvas never renders; page shows only raw JS source code as text, no pendulum visible.

off-prompt

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 motion0.0%

on click0.0%

on drag8.9%

on wheel0.0%

on enter + space0.0%

on arrow keys0.0%

on w/a/s/d0.0%

frame spread38 / 255

console errors0

js errors none

METRICS

runtime139.4s

tokens in1.4k

tokens out2.4k

cached16

cost / run$0.0009