Knowledge-Cutoff Benchmark · Explorer

How up-to-date is each AI model?

12 models were each probed on 330 surprising, unforecastable events spanning 30 months (Jan 2024 – Jun 2026). Below: a month-by-month heatmap with each model's claimed cutoff ringed, a leaderboard of where knowledge actually collapses (its effective cutoff), and — for every single event — the exact answer each model gave. Pick an event and read them yourself.

doesn't know knows  ·  shade = % correct that month  ·  claimed cutoff (where the model says its knowledge ends)
ModelAdvertisedEffective cutoffvs advertised Alive ctlFake ctl