# Watermark Detectability on C4 RealNewsLike (Del-0.5) (test)

Source: [Watermark Detectability on C4 RealNewsLike (Del-0.5) (test)](<https://www.sota2.com/research/sota/watermark-detectability-on-c4-realnewslike-del-0-5-test>)

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

Data updated: 2026-02-26T05:25:07.337Z

Evaluation of watermark detectability performance using AUC and True Positive Rate (TPR) on the specific test split of the C4 RealNewsLike dataset modified by a 0.5 deletion perturbation.

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 | Watermark Detectability |
| Dataset (including any stated split) | C4 RealNewsLike (Del-0.5) (test) |
| Metric | AUC |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 14 of 14 |
| 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/watermark-detectability-on-c4-realnewslike-del-0-5-test.md?metric=AUC>): Higher is better; unit: PERCENT.

- [TPR](<https://www.sota2.com/research/sota/watermark-detectability-on-c4-realnewslike-del-0-5-test.md?metric=TPR>): Higher is better; unit: PERCENT.

## Recorded results

| Method | AUC | Result date | Report paper |
| --- | --- | --- | --- |
| KGW-D | 85.1 | Not recorded | 693115d9d6b0dd3342933da6 |
| KGW-D | 80.3 | Not recorded | 693115d9d6b0dd3342933da6 |
| Gumbel-max | 79 | Not recorded | 693115d9d6b0dd3342933da6 |
| MarkTune | 78.3 | Not recorded | 693115d9d6b0dd3342933da6 |
| SynthID | 78 | Not recorded | 693115d9d6b0dd3342933da6 |
| Gumbel-max | 77.8 | Not recorded | 693115d9d6b0dd3342933da6 |
| SynthID | 77.7 | Not recorded | 693115d9d6b0dd3342933da6 |
| MarkTune | 74.4 | Not recorded | 693115d9d6b0dd3342933da6 |
| KGW-2 | 71.1 | Not recorded | 693115d9d6b0dd3342933da6 |
| KGW-2 | 69.7 | Not recorded | 693115d9d6b0dd3342933da6 |
| GaussMark | 62.2 | Not recorded | 693115d9d6b0dd3342933da6 |
| KGW-1 | 61.7 | Not recorded | 693115d9d6b0dd3342933da6 |
| GaussMark | 61.7 | Not recorded | 693115d9d6b0dd3342933da6 |
| KGW-1 | 58.1 | Not recorded | 693115d9d6b0dd3342933da6 |

### KGW-D

AUC: 85.1. Result ID: 69998b265698665ec4fd0d17.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73141e209131cea5a619.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### KGW-D

AUC: 80.3. Result ID: 69998b265698665ec4fd0d1e.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73141e209131cea5a619.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

### Gumbel-max

AUC: 79. Result ID: 69998b265698665ec4fd0d1c.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

### MarkTune

AUC: 78.3. Result ID: 69998b265698665ec4fd0d20.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

### SynthID

AUC: 78. Result ID: 69998b265698665ec4fd0d16.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### Gumbel-max

AUC: 77.8. Result ID: 69998b265698665ec4fd0d15.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### SynthID

AUC: 77.7. Result ID: 69998b265698665ec4fd0d1d.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

### MarkTune

AUC: 74.4. Result ID: 69998b265698665ec4fd0d19.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### KGW-2

AUC: 71.1. Result ID: 69998b265698665ec4fd0d1b.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73131e209131cea5a4b7.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

### KGW-2

AUC: 69.7. Result ID: 69998b265698665ec4fd0d14.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73131e209131cea5a4b7.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### GaussMark

AUC: 62.2. Result ID: 69998b265698665ec4fd0d18.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76b31e209131cea6e8eb.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### KGW-1

AUC: 61.7. Result ID: 69998b265698665ec4fd0d13.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73131e209131cea5a4b7.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-4B","Temperature":"0.7"}. This record does not assert independent reproduction.

### GaussMark

AUC: 61.7. Result ID: 69998b265698665ec4fd0d1f.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76b31e209131cea6e8eb.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

### KGW-1

AUC: 58.1. Result ID: 69998b265698665ec4fd0d1a.

[Reporting paper](<https://www.sota2.com/research/paper/693115d9d6b0dd3342933da6.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73131e209131cea5a4b7.md>)

Recorded evaluation configuration: {"Backbone":"Llama2-7B","Temperature":"1.0"}. This record does not assert independent reproduction.

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