# Machine-Generated Text Detection on HC3 (full)

Source: [Machine-Generated Text Detection on HC3 (full)](<https://www.sota2.com/research/sota/machine-generated-text-detection-on-hc3-full>)

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

Data updated: 2026-02-26T05:29:49.671Z

Evaluation of models on the full HC3 dataset for detecting machine-generated text, reporting Accuracy and F1 scores.

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 | Machine-Generated Text Detection |
| Dataset (including any stated split) | HC3 (full) |
| Metric | Accuracy |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 9 of 9 |
| 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

- [Accuracy](<https://www.sota2.com/research/sota/machine-generated-text-detection-on-hc3-full.md?metric=Accuracy>): Higher is better; unit: PERCENT.

- [F1 Score](<https://www.sota2.com/research/sota/machine-generated-text-detection-on-hc3-full.md?metric=F1%20Score>): Higher is better; unit: PERCENT.

## Recorded results

| Method | Accuracy | Result date | Report paper |
| --- | --- | --- | --- |
| PECOLA | 99.92 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| CE+SCL | 99.89 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| CE+Margin | 99.86 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| RoBERTa | 99.84 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| CoCo | 99.46 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| IT:Clust | 98.8 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| GLTR | 98.39 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| Fast-Detect. | 98.32 | Not recorded | 68fa73fd1e209131cea5f0f0 |
| DetectGPT | 95.13 | Not recorded | 68fa73fd1e209131cea5f0f0 |

### PECOLA

Accuracy: 99.92. Result ID: 699313473a6c3148491384b0.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Implementation](<https://github.com/lsc-1/Pecola>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### CE+SCL

Accuracy: 99.89. Result ID: 699313473a6c3148491384aa.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69b41e209131cea2393a.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### CE+Margin

Accuracy: 99.86. Result ID: 699313473a6c3148491384ab.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ba51e209131cea2f89c.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### RoBERTa

Accuracy: 99.84. Result ID: 699313473a6c3148491384a8.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa66131e209131cea0e18b.md>)

[Implementation](<https://github.com/pytorch/fairseq>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### CoCo

Accuracy: 99.46. Result ID: 699313473a6c3148491384ad.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### IT:Clust

Accuracy: 98.8. Result ID: 699313473a6c3148491384ac.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6c141e209131cea32053.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### GLTR

Accuracy: 98.39. Result ID: 699313473a6c3148491384a9.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa65e11e209131cea0d18b.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### Fast-Detect.

Accuracy: 98.32. Result ID: 699313473a6c3148491384af.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76341e209131cea6bcf2.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

### DetectGPT

Accuracy: 95.13. Result ID: 699313473a6c3148491384ae.

[Reporting paper](<https://www.sota2.com/research/paper/68fa73fd1e209131cea5f0f0.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa701a1e209131cea49064.md>)

Recorded evaluation configuration: {"Shot":"10000"}. This record does not assert independent reproduction.

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