Anthropic in particular has been moving the level of watermarking since the beginning of the year. You didn’t think it just went from off to on one day did you? It needs time to get plastered over the internet, see what people do that break it, how Google summaries erase it (or not, or add their own). All of this takes at least months if not a year.

I can tell as it uses what are super accurate words but i only know that after i lookup the phase.

Today, i was stumped as it substituted a work with a word from another language!

"The four items the ledger had标 standing open..."