# GPT-5.1-Codex-Max · xhigh

Different actual run from medium, counted as its own work; medium remains the timeline representative. The enhanced brown-pelican image is already archived and is not added again. Source-reported model attribution is not independently authenticated. Date follows the article publication; exact generation time is not inferred. Original media archived locally without redrawing or improving.

- Recorded date: 2025-11-19
- Date precision: Day
- Date basis: source-publication
- Model (source label): GPT-5.1-Codex-Max
- Model attribution: Source-reported, not independently authenticated
- Creator / publisher: Simon Willison
- Format: Static SVG
- Prompt category: Source-documented test
- Original prompt: Generate an SVG of a pelican riding a bicycle
- Last updated: 2026-10-01
- caseRole: case
- caseNumber: 177
- timelineVisible: False
- datePrecision: day
- dateBasis: source-publication
- representativeOf: simon-late-51-0-2025-11-19
- comparisonIds: ['simon-late-51-0-2025-11-19', 'simon-late-51-1-2025-11-19']
- Original source: https://simonwillison.net/2025/Nov/19/gpt-51-codex-max/
- Archive record: https://pelicanmap.aveniqa.com/en/specimens/simon-late-51-1-2025-11-19/
- Rights: Works belong to their original creators. Archiving does not change their licenses.
- Media: https://pelicanmap.aveniqa.com/media/collected/2026-10-01-nile-late/simon-late-51-1-2025-11-19.jpg
  Source: https://static.simonwillison.net/static/2025/codex-max-xhigh.jpg