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Text Watermarking on OpenGen 48 Bits payload (test)

3.58PerplexityBiMark (10)
3.55523.72263.894.0574Jul 6, 2026

Evaluation results

MethodLinks
BiMark (10)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(10)2026.073.5880
BiMark (20)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(20)2026.073.5986.9
HeRo2 (2,2)Model=Llama2-7B, Generation Length=400 tokens, S.D.=true, Watermark Parameters=(2,2)2026.073.6187.6
BiMark (5)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(5)2026.073.6375.9
HeRo2 (1,1)Model=Llama2-7B, Generation Length=400 tokens, S.D.=true, Watermark Parameters=(1,1)2026.073.6484.2
HeRo2 (2,1)Model=Llama2-7B, Generation Length=400 tokens, S.D.=true, Watermark Parameters=(2,1)2026.073.6487
HeRo1 (2)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(2)2026.073.6593.9
HeRo1 (3)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(3)2026.073.6895.4
StealthInk (1)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(1)2026.073.6982
w/oModel=Llama2-7B, Generation Length=400 tokens, S.D.=false2026.073.7—
StealthInk (2)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(2)2026.073.7474.1
MPAC (1, 2.0)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(1, 2.0)2026.074.0485.5
MPAC (2, 2.0)Model=Llama2-7B, Generation Length=400 tokens, S.D.=false, Watermark Parameters=(2, 2.0)2026.074.286.4