# Long-context Question Answering on LongBench v2 (full)

Source: [Long-context Question Answering on LongBench v2 (full)](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full>)

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

Data updated: 2026-07-02T09:44:01.300Z

Evaluation of Long-context Question Answering performance on the full configuration of the LongBench v2 dataset, reporting accuracy across overall, easy, hard, short, medium, and long context segments.

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 Question Answering |
| Dataset (including any stated split) | LongBench v2 (full) |
| Metric | Overall Accuracy |
| Unit | PERCENT |
| 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

- [Overall Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Overall%20Accuracy>): Higher is better; unit: PERCENT.

- [Easy Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Easy%20Accuracy>): Higher is better; unit: PERCENT.

- [Hard Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Hard%20Accuracy>): Higher is better; unit: PERCENT.

- [Short Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Short%20Accuracy>): Higher is better; unit: PERCENT.

- [Medium Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Medium%20Accuracy>): Higher is better; unit: PERCENT.

- [Long Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Long%20Accuracy>): Higher is better; unit: PERCENT.

- [Latency (s)](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Latency%20(s)>): Lower is better; unit: TIME.

- [Single-Document QA Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Single-Document%20QA%20Accuracy>): Higher is better; unit: PERCENT.

- [Multi-Document QA Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Multi-Document%20QA%20Accuracy>): Higher is better; unit: PERCENT.

- [Long In-context Learning Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Long%20In-context%20Learning%20Accuracy>): Higher is better; unit: PERCENT.

- [Long-dialogue History Understanding Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Long-dialogue%20History%20Understanding%20Accuracy>): Higher is better; unit: PERCENT.

- [Code Repository Understanding Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Code%20Repository%20Understanding%20Accuracy>): Higher is better; unit: PERCENT.

- [Long Structured Data Understanding Accuracy](<https://www.sota2.com/research/sota/long-context-question-answering-on-longbench-v2-full.md?metric=Long%20Structured%20Data%20Understanding%20Accuracy>): Higher is better; unit: PERCENT.

## Recorded results

| Method | Overall Accuracy | Result date | Report paper |
| --- | --- | --- | --- |
| Full context | 56.7 | Not recorded | 6a1e640edbd7150506f85683 |
| Full context (100k) | 51.1 | Not recorded | 6a1e640edbd7150506f85683 |
| LongAttnComp (Stage 2, nosubq) | 49.7 | Not recorded | 6a1e640edbd7150506f85683 |
| LongAttnComp (Stage 2, subq) | 48.9 | Not recorded | 6a1e640edbd7150506f85683 |
| RLM | 46.7 | Not recorded | 6a45f096dc71372d7795a3bf |
| MPLM | 46.5 | Not recorded | 6a45f096dc71372d7795a3bf |
| Speculative Prefill | 46.3 | Not recorded | 6a1e640edbd7150506f85683 |
| LongAttnComp (Stage 1) | 41.7 | Not recorded | 6a1e640edbd7150506f85683 |
| MPLM | 37.8 | Not recorded | 6a45f096dc71372d7795a3bf |
| RLM | 29.7 | Not recorded | 6a45f096dc71372d7795a3bf |

### Full context

Overall Accuracy: 56.7. Result ID: 6a1eb608fbc373592c19b406.

[Reporting paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

Recorded evaluation configuration: {"Context length constraint":"Untruncated"}. This record does not assert independent reproduction.

### Full context (100k)

Overall Accuracy: 51.1. Result ID: 6a1eb608fbc373592c19b407.

[Reporting paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

Recorded evaluation configuration: {"Context length constraint":"100k input tokens"}. This record does not assert independent reproduction.

### LongAttnComp (Stage 2, nosubq)

Overall Accuracy: 49.7. Result ID: 6a1eb608fbc373592c19b40b.

[Reporting paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

Recorded evaluation configuration: {"Training stage":"Stage 2","Query-construction variant":"nosubq"}. This record does not assert independent reproduction.

### LongAttnComp (Stage 2, subq)

Overall Accuracy: 48.9. Result ID: 6a1eb608fbc373592c19b40a.

[Reporting paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

Recorded evaluation configuration: {"Training stage":"Stage 2","Query-construction variant":"subq"}. This record does not assert independent reproduction.

### RLM

Overall Accuracy: 46.7. Result ID: 6a4632dd60b88bb339864cb0.

[Reporting paper](<https://www.sota2.com/research/paper/6a45f096dc71372d7795a3bf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6955ff9153fdd5c36173e066.md>)

[Implementation](<https://github.com/alexzhang13/rlm/tree/main>)

Recorded evaluation configuration: {"Backbone":"Qwen3.6-35B-A3B","Fine-tuning":"None"}. This record does not assert independent reproduction.

### MPLM

Overall Accuracy: 46.5. Result ID: 6a4632dd60b88bb339864caf.

[Reporting paper](<https://www.sota2.com/research/paper/6a45f096dc71372d7795a3bf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a45f096dc71372d7795a3bf.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3.6-35B-A3B","Fine-tuning":"None"}. This record does not assert independent reproduction.

### Speculative Prefill

Overall Accuracy: 46.3. Result ID: 6a1eb608fbc373592c19b408.

[Reporting paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78a81e209131cea79a99.md>)

Recorded evaluation configuration: {"Prefilling strategy":"Speculative"}. This record does not assert independent reproduction.

### LongAttnComp (Stage 1)

Overall Accuracy: 41.7. Result ID: 6a1eb608fbc373592c19b409.

[Reporting paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a1e640edbd7150506f85683.md>)

Recorded evaluation configuration: {"Training stage":"Stage 1"}. This record does not assert independent reproduction.

### MPLM

Overall Accuracy: 37.8. Result ID: 6a4632dd60b88bb339864cad.

[Reporting paper](<https://www.sota2.com/research/paper/6a45f096dc71372d7795a3bf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a45f096dc71372d7795a3bf.md>)

Recorded evaluation configuration: {"Backbone":"Qwen3-30B-A3B","Fine-tuning":"None"}. This record does not assert independent reproduction.

### RLM

Overall Accuracy: 29.7. Result ID: 6a4632dd60b88bb339864cae.

[Reporting paper](<https://www.sota2.com/research/paper/6a45f096dc71372d7795a3bf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6955ff9153fdd5c36173e066.md>)

[Implementation](<https://github.com/alexzhang13/rlm/tree/main>)

Recorded evaluation configuration: {"Backbone":"Qwen3-30B-A3B","Fine-tuning":"None"}. This record does not assert independent reproduction.

Page 1 of 1. This is an index page, not the full collection.
