the Ledger

gpt-5.5

OpenAI · 1 benchmark · Unreviewed — scraped, not checked against its sources · Latest test Sep 9, 2026

Every score this site tracks for gpt-5.5, including the benchmarks that are not on the board’s headline columns. Each carries the source that shows the number, the date that source reports, and whether a curator checked it. Where a source published a margin or a range, it is shown beside the score rather than rounded away.

Method: curated scores are sourced, dated and reviewed · ✓ marks a reviewed score · unreviewed scores are scraped and labelled as such