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Model Fingerprinting Robustness on CodeLLaMA 7B

0.9947Similarity ScoreREEF
0.1682120.3827810.597350.811919Apr 7, 2026

Evaluation results

MethodLinks
REEFFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.9947
ATTNDIFFFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.989
LLMMapFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.9555
LogitsFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.7833
PCSFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.5301
ICSFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.5112
ProFlingoFine-tuning data scale (tokens)=500B tokens, Base model=Llama-2-7B2026.040.2