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Piano synth · gpt-4o-mini

Output generated Cost / run $0.0011 Runtime 16.6s

Prompt for this run

Using the pre-provided tone.min.js (global Tone), build a playable piano keyboard controlled by mouse and computer keys that synthesizes notes with an ADSR envelope and visual key feedback.

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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-4o-mini
vendorOpenAI
harnesspi-agent
generated2026-07-22

METRICS

runtime16.6s
tokens in3.6k
tokens out1.2k
cached2.3k
cost / run$0.0011
Transcript · 4 messages
user

Using the pre-provided tone.min.js (global Tone), build a playable piano keyboard controlled by mouse and computer keys that synthesizes notes with an ADSR envelope and visual key feedback.

assistant
→ write index.html (4045 bytes)
toolResult

Successfully wrote 4045 bytes to index.html

assistant

The single-page web app with a playable piano keyboard has been created successfully. You can find it in the file `index.html`. This app uses the provided `tone.min.js` and allows you to play notes with both mouse clicks and keyboard keys, complete with visual feedback.