Vision API in Practice: Screenshots and UI Review

What Vision Handles Well

Screenshots, photos of whiteboards, charts, error dialogs and hand-drawn mockups. If you can see the task, Claude probably can too.

Practical Uses

# UI review from a screenshot
Analyze this settings screen for usability issues.
List them by severity with one-line fixes.

# Chart to table
Convert this bar chart into a markdown table
with exact values.

Tips

Crop to the relevant area for dense screens. State what good looks like so Claude judges against your bar, not a generic one. For code in screenshots, retype or upload the file: OCR is good, not perfect.