Watermark Detection on SimpleQA
0.81Delta_qACTHOOK
Evaluation Results
| Method | Links | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ACTHOOKWmk=Standalone, Watermark Ratio R=0.102026.02 | 0.81 | — | — | — | — | 13.1 | 17.2 | 0.149 | 99.3 | |
| ACTHOOKWatermark Type=Standalone, Paraphrase Attack=Yes2026.02 | 0.8 | — | — | — | — | — | — | — | 99.7 | |
| ACTHOOKWmk=Contextual, Watermark Ratio R=0.102026.02 | 0.77 | — | — | — | — | 7.9 | 9.5 | 0.086 | 98.9 | |
| ACTHOOKWatermark Type=Standalone, Paraphrase Attack=None2026.02 | 0.77 | — | — | — | — | — | — | — | 99.6 | |
| ACTHOOKWmk=Standalone, Watermark Ratio R=0.052026.02 | 0.75 | — | — | — | — | 5.2 | 13.3 | 0.075 | 98.8 | |
| ACTHOOKWmk=Contextual, Watermark Ratio R=0.052026.02 | 0.52 | — | — | — | — | 4.8 | 11.8 | 0.068 | 88.3 | |
| ACTHOOKWatermark Type=Contextual, Paraphrase Attack=None2026.02 | 0.52 | — | — | — | — | — | — | — | 87.9 | |
| ACTHOOKWatermark Type=Contextual, Paraphrase Attack=Yes2026.02 | 0.42 | — | — | — | — | — | — | — | 83.1 | |
| CodeMarkWmk=CodeMark, Watermark Ratio R=0.102026.02 | 0.01 | — | — | — | — | 31.5 | 15.6 | 0.208 | 51.3 | |
| CodeMarkWmk=CodeMark, Watermark Ratio R=0.052026.02 | 0 | — | — | — | — | 44.6 | 60 | 0.512 | 50 | |
| ACTHOOKWatermark Type=Standalone2026.02 | — | 0.77 | 0.81 | 99.6 | 99.8 | — | — | — | — | |
| ACTHOOKWatermark Type=Contextual2026.02 | — | 0.52 | 0.46 | 87.9 | 84.3 | — | — | — | — |