> Natzir Turrado, a technical consultant, actually tested this (article in Spanish) by reproducing SynthID-Text on an open model with the paper's settings and a watermark key. He asked the watermarked model five times to describe a memorable trip to a coastal town. Four of the five answers he got back opened in a near-identical way: “My heart still sings/dances when I think back to my trip to the quaint coastal town of…”. For the unwatermarked model, three opened in different ways.

A test of 2/5 vs 4/5 seems to be an obviously invalid experiment.

The linked article in Spanish contains substantially more detail. Natzir Turrado tested hundreds of prompts.

For this example; he tested 30 prompts at 5 pass-pairs each; so 300 times.

https://natzir.com/posicionamiento-buscadores/que-es-como-fu...