# Long-context retrieval on RULER 64K context

Source: [Long-context retrieval on RULER 64K context](<https://www.sota2.com/research/sota/long-context-retrieval-on-ruler-64k-context>)

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

Data updated: 2026-04-28T10:21:50.936Z

Evaluation of model performance on the RULER dataset specifically configured for a 64,000 token context length, focusing on Long-context retrieval accuracy and delta metrics.

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 | Long-context retrieval |
| Dataset (including any stated split) | RULER 64K context |
| Metric | Accuracy |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 19 of 19 |
| 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/long-context-retrieval-on-ruler-64k-context.md?metric=Accuracy>): Higher is better; unit: PERCENT.

- [Delta](<https://www.sota2.com/research/sota/long-context-retrieval-on-ruler-64k-context.md?metric=Delta>): Higher is better; unit: SCALAR.

- [Correct Count](<https://www.sota2.com/research/sota/long-context-retrieval-on-ruler-64k-context.md?metric=Correct%20Count>): Higher is better; unit: SCALAR.

- [Accuracy Std Dev](<https://www.sota2.com/research/sota/long-context-retrieval-on-ruler-64k-context.md?metric=Accuracy%20Std%20Dev>): Lower is better; unit: SCALAR.

## Recorded results

| Method | Accuracy | Result date | Report paper |
| --- | --- | --- | --- |
| WindowedManifoldKV | 84.3 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Windowed-4K | 84.29 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Windowed-8K | 83.92 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| WindowedManifoldKV | 83.9 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| WindowedManifoldKV | 82.4 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Windowed-16K | 82.4 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Hybrid (0.3) | 81.26 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| KeyDiff | 81.1 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| KeyDiff | 81.09 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Normalized | 81.06 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Hybrid (0.5) | 79.14 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Full Attention | 78.16 | Not recorded | 69f03f7b55a3c32af89fa561 |
| KSA | 76.09 | Not recorded | 69f03f7b55a3c32af89fa561 |
| Hybrid-KSA | 76.04 | Not recorded | 69f03f7b55a3c32af89fa561 |
| Hybrid-SWA | 73.88 | Not recorded | 69f03f7b55a3c32af89fa561 |
| Hybrid-Linear | 73.5 | Not recorded | 69f03f7b55a3c32af89fa561 |
| Hybrid-SCA | 68.88 | Not recorded | 69f03f7b55a3c32af89fa561 |
| ManifoldKV | 35.2 | Not recorded | 698abbd9c97a0b3e3b5de23d |
| Global ManifoldKV | 35.2 | Not recorded | 698abbd9c97a0b3e3b5de23d |

### WindowedManifoldKV

Accuracy: 84.3. Result ID: 6998daf95698665ec43f01d6.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Type":"Local L2","Window Size":"4K"}. This record does not assert independent reproduction.

### Windowed-4K

Accuracy: 84.29. Result ID: 6998daf95698665ec43f01db.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%","Window Size":"4K"}. This record does not assert independent reproduction.

### Windowed-8K

Accuracy: 83.92. Result ID: 6998daf95698665ec43f01dc.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%","Window Size":"8K"}. This record does not assert independent reproduction.

### WindowedManifoldKV

Accuracy: 83.9. Result ID: 6998daf95698665ec43f01d7.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Type":"Local L2","Window Size":"8K"}. This record does not assert independent reproduction.

### WindowedManifoldKV

Accuracy: 82.4. Result ID: 6998daf95698665ec43f01d8.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Type":"Local L2","Window Size":"16K"}. This record does not assert independent reproduction.

### Windowed-16K

Accuracy: 82.4. Result ID: 6998daf95698665ec43f01dd.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%","Window Size":"16K"}. This record does not assert independent reproduction.

### Hybrid (0.3)

Accuracy: 81.26. Result ID: 6998daf95698665ec43f01de.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%","Hybrid Alpha":0.3}. This record does not assert independent reproduction.

### KeyDiff

Accuracy: 81.1. Result ID: 6998daf95698665ec43f01d9.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78a81e209131cea79ade.md>)

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

### KeyDiff

Accuracy: 81.09. Result ID: 6998daf95698665ec43f01df.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78a81e209131cea79ade.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%"}. This record does not assert independent reproduction.

### Normalized

Accuracy: 81.06. Result ID: 6998daf95698665ec43f01e0.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%"}. This record does not assert independent reproduction.

### Hybrid (0.5)

Accuracy: 79.14. Result ID: 6998daf95698665ec43f01e1.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%","Hybrid Alpha":0.5}. This record does not assert independent reproduction.

### Full Attention

Accuracy: 78.16. Result ID: 69f08a2b47f34ce924d723bd.

[Reporting paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa703d1e209131cea49db1.md>)

[Implementation](<https://github.com/tensorflow/tensor2tensor>)

Recorded evaluation configuration: {"Setting":"CPT setting"}. This record does not assert independent reproduction.

### KSA

Accuracy: 76.09. Result ID: 69f08a2b47f34ce924d723c1.

[Reporting paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

[Method origin paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

Recorded evaluation configuration: {"Setting":"CPT setting"}. This record does not assert independent reproduction.

### Hybrid-KSA

Accuracy: 76.04. Result ID: 69f08a2b47f34ce924d723c2.

[Reporting paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

[Method origin paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

Recorded evaluation configuration: {"Setting":"CPT setting"}. This record does not assert independent reproduction.

### Hybrid-SWA

Accuracy: 73.88. Result ID: 69f08a2b47f34ce924d723be.

[Reporting paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68d41e209131cea1e701.md>)

[Implementation](<https://github.com/allenai/longformer>)

Recorded evaluation configuration: {"Setting":"CPT setting"}. This record does not assert independent reproduction.

### Hybrid-Linear

Accuracy: 73.5. Result ID: 69f08a2b47f34ce924d723c0.

[Reporting paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7c661e209131cea8ddb6.md>)

Recorded evaluation configuration: {"Setting":"CPT setting"}. This record does not assert independent reproduction.

### Hybrid-SCA

Accuracy: 68.88. Result ID: 69f08a2b47f34ce924d723bf.

[Reporting paper](<https://www.sota2.com/research/paper/69f03f7b55a3c32af89fa561.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa65aa1e209131cea0bc26.md>)

Recorded evaluation configuration: {"Setting":"CPT setting"}. This record does not assert independent reproduction.

### ManifoldKV

Accuracy: 35.2. Result ID: 6998daf95698665ec43f01da.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Type":"Global L2"}. This record does not assert independent reproduction.

### Global ManifoldKV

Accuracy: 35.2. Result ID: 6998daf95698665ec43f01e2.

[Reporting paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

[Method origin paper](<https://www.sota2.com/research/paper/698abbd9c97a0b3e3b5de23d.md>)

Recorded evaluation configuration: {"Samples":6497,"Compression Ratio":"25%","Window Mode":"Global"}. This record does not assert independent reproduction.

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