Thomas Steiner • 9/9/2025

Prompt API color sensitivity

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The article details an experiment stress-testing the multimodal Prompt API, specifically using Gemini Nano to read a time displayed on an HTML canvas. It discovers the model is surprisingly sensitive to color, performing poorly with red text on dark backgrounds despite adequate contrast ratios, and provides performance metrics and a link to a demo.

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#JavaScript #canvas #color contrast
Prompt API color sensitivity

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