# LLM fingerprinting on Gemma 2 2B

Source: [LLM fingerprinting on Gemma 2 2B](<https://www.sota2.com/research/sota/llm-fingerprinting-on-gemma-2-2b>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-04-15T09:12:38.901Z

Evaluation of LLM fingerprinting techniques applied to the Gemma 2 2B model, measured using AUC and KS Statistic.

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

| Scope | Recorded value |
| --- | --- |
| Task | LLM fingerprinting |
| Dataset (including any stated split) | Gemma 2 2B |
| Metric | AUC |
| Unit | SCALAR |
| Direction | Higher is better |
| Results loaded | 10 of 10 |
| Coverage | All results currently returned for this benchmark |

Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol.

## Metrics

- [AUC](<https://www.sota2.com/research/sota/llm-fingerprinting-on-gemma-2-2b.md?metric=AUC>): Higher is better; unit: SCALAR.

- [KS Statistic](<https://www.sota2.com/research/sota/llm-fingerprinting-on-gemma-2-2b.md?metric=KS%20Statistic>): Higher is better; unit: SCALAR.

## Recorded results

| Method | AUC | Result date | Report paper |
| --- | --- | --- | --- |
| Gradient | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| Gradient | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| ICS | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| ICS | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| Intrinsic | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| Intrinsic | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| SeedPrints | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| SeedPrints | 1 | Not recorded | 68fa7bcb1e209131cea8a83d |
| REEF | 0.968 | Not recorded | 68fa7bcb1e209131cea8a83d |
| REEF | 0.963 | Not recorded | 68fa7bcb1e209131cea8a83d |

### Gradient

AUC: 1. Result ID: 69df566047f34ce924c84c08.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7b8b1e209131cea890b0.md>)

Recorded evaluation configuration: {"Source Model Type":"PT"}. This record does not assert independent reproduction.

### Gradient

AUC: 1. Result ID: 69df566047f34ce924c84c09.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7b8b1e209131cea890b0.md>)

Recorded evaluation configuration: {"Source Model Type":"IT"}. This record does not assert independent reproduction.

### ICS

AUC: 1. Result ID: 69df566047f34ce924c84c0a.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76771e209131cea6d29b.md>)

[Implementation](<https://github.com/LUMIA-Group/HuRef>)

Recorded evaluation configuration: {"Source Model Type":"PT"}. This record does not assert independent reproduction.

### ICS

AUC: 1. Result ID: 69df566047f34ce924c84c0b.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76771e209131cea6d29b.md>)

[Implementation](<https://github.com/LUMIA-Group/HuRef>)

Recorded evaluation configuration: {"Source Model Type":"IT"}. This record does not assert independent reproduction.

### Intrinsic

AUC: 1. Result ID: 69df566047f34ce924c84c0c.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa79dc1e209131cea7fcbf.md>)

Recorded evaluation configuration: {"Source Model Type":"PT"}. This record does not assert independent reproduction.

### Intrinsic

AUC: 1. Result ID: 69df566047f34ce924c84c0d.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa79dc1e209131cea7fcbf.md>)

Recorded evaluation configuration: {"Source Model Type":"IT"}. This record does not assert independent reproduction.

### SeedPrints

AUC: 1. Result ID: 69df566047f34ce924c84c0e.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

Recorded evaluation configuration: {"Source Model Type":"PT"}. This record does not assert independent reproduction.

### SeedPrints

AUC: 1. Result ID: 69df566047f34ce924c84c0f.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

Recorded evaluation configuration: {"Source Model Type":"IT"}. This record does not assert independent reproduction.

### REEF

AUC: 0.968. Result ID: 69df566047f34ce924c84c07.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa753d1e209131cea66b35.md>)

Recorded evaluation configuration: {"Source Model Type":"IT"}. This record does not assert independent reproduction.

### REEF

AUC: 0.963. Result ID: 69df566047f34ce924c84c06.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7bcb1e209131cea8a83d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa753d1e209131cea66b35.md>)

Recorded evaluation configuration: {"Source Model Type":"PT"}. This record does not assert independent reproduction.

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