Duration of gaze fixation required to select. Research recommends 600-1000ms. Longer = fewer accidental selections.

How far the gaze cursor magnetically snaps to the nearest button. Higher = easier targeting but less precision. 0 = off.

Larger targets improve eye gaze accuracy (research: min 80px recommended).

Enter your OpenAI API key for high-quality AI voice output. Falls back to browser speech if not set.

Choose the AI voice for spoken output (only used when OpenAI key is set).

Browser voice used when OpenAI key is not set.

Number of word predictions shown. More = higher hit rate but more scanning.

Enter your Anthropic API key to enable AI-powered predictions. Key is stored locally in your browser only.