Reference record
The OpenAI links below document private clean-room measurement. They do not imply affiliation, endorsement, human approval, or permission to republish source screens.
- System
- W27 · web
- Studied
- 2026-08-13
- Entry family
- left-rail-product-index-stage
- Status
- reference-measured · human review required
Automated targets: structural changed pixels ≤ 2.0%, full changed pixels ≤ 8.0%, MAE ≤ 0.015, RMSE ≤ 0.035. These are measurement targets, not pixel-perfect certification.
Asset record: Licensed workplace photography, original floor-plan SVGs, fictional member stories, and CSS modular illustrations. Reference imagery is research-only. Public experiences ship original or licensed assets with source records.
- OpenAI web section 1
Left-rail product index
- 34px utility masthead above a 92px directory rail
- four equal image-first cards begin after a compact story strip
- 151px square-edged media fields and tiny two-line metadata establish the index rhythm
- OpenAI web section 2
Two-tier developer proposition
- 34px global masthead plus a 43px section navigation tier
- centered 31px serif two-line proposition in a 270px white field
- paired pill action and text action precede a light-grey split evidence band