# Classification on MNIST Unpermuted pixel-by-pixel (val)

Source: [Classification on MNIST Unpermuted pixel-by-pixel (val)](<https://www.sota2.com/research/sota/classification-on-mnist-unpermuted-pixel-by-pixel-val>)

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

Data updated: 2026-02-26T05:27:13.485Z

Evaluation of classification performance on the validation split of the unpermuted, pixel-by-pixel version of the MNIST dataset.

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 | Classification |
| Dataset (including any stated split) | MNIST Unpermuted pixel-by-pixel (val) |
| Metric | Accuracy |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 5 of 5 |
| 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/classification-on-mnist-unpermuted-pixel-by-pixel-val.md?metric=Accuracy>): Higher is better; unit: PERCENT.

## Recorded results

| Method | Accuracy | Result date | Report paper |
| --- | --- | --- | --- |
| LSTM | 98.5 | Not recorded | 68fa62d81e209131ce9fb96f |
| LSTM | 98.1 | Not recorded | 68fa62d81e209131ce9fb96f |
| Restricted-capacity uRNN | 97.9 | Not recorded | 68fa62d81e209131ce9fb96f |
| Full-capacity uRNN | 97.5 | Not recorded | 68fa62d81e209131ce9fb96f |
| Full-capacity uRNN | 92.7 | Not recorded | 68fa62d81e209131ce9fb96f |

### LSTM

Accuracy: 98.5. Result ID: 698be389ecace47ef559aeac.

[Reporting paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

Recorded evaluation configuration: {"N":256,"# parameters":"≈ 270k"}. This record does not assert independent reproduction.

### LSTM

Accuracy: 98.1. Result ID: 698be389ecace47ef559aeab.

[Reporting paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

Recorded evaluation configuration: {"N":128,"# parameters":"≈ 68k"}. This record does not assert independent reproduction.

### Restricted-capacity uRNN

Accuracy: 97.9. Result ID: 698be389ecace47ef559aead.

[Reporting paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62d51e209131ce9fb7aa.md>)

Recorded evaluation configuration: {"N":512,"# parameters":"≈ 16k"}. This record does not assert independent reproduction.

### Full-capacity uRNN

Accuracy: 97.5. Result ID: 698be389ecace47ef559aeaf.

[Reporting paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

[Implementation](<https://github.com/stwisdom/urnn>)

Recorded evaluation configuration: {"N":512,"# parameters":"≈ 270k"}. This record does not assert independent reproduction.

### Full-capacity uRNN

Accuracy: 92.7. Result ID: 698be389ecace47ef559aeae.

[Reporting paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62d81e209131ce9fb96f.md>)

[Implementation](<https://github.com/stwisdom/urnn>)

Recorded evaluation configuration: {"N":116,"# parameters":"≈ 16k"}. This record does not assert independent reproduction.

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