Two generations of the model,
on the same page.
v0 was trained on mouse movements. v1 is trained on real eye-tracking and reads full pages one viewport at a time. Pick a site, drag the slider, and see exactly where the new model looks differently. Nothing here is mocked — it's live model output.
STRIPE.COM · REAL MODEL OUTPUT
What changed: v0 pours attention onto the decorative gradient. v1 locks onto the headline and the two CTAs — where a visitor actually decides.
Run both generations on your own page
The model selector is built into the tool — analyze any screenshot or URL with v1 or v0 and compare.