# Open-Domain Question Answering on Natural Questions (NQ) (EM, Q/s)

Source: [Open-Domain Question Answering on Natural Questions (NQ) (EM, Q/s)](<https://www.sota2.com/research/sota/open-domain-question-answering-on-natural-questions-nq-em-q-s>)

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

Data updated: 2026-02-26T05:41:35.441Z

Evaluation of model performance on the Natural Questions (NQ) dataset for Open-Domain Question Answering, measured using Exact Match (EM) and throughput (Q/s).

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 | Open-Domain Question Answering |
| Dataset (including any stated split) | NQ (Natural Questions) |
| Metric | EM |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 33 of 33 |
| 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

- [EM](<https://www.sota2.com/research/sota/open-domain-question-answering-on-natural-questions-nq-em-q-s.md?metric=EM>): Higher is better; unit: PERCENT.

- [Throughput (Q/s)](<https://www.sota2.com/research/sota/open-domain-question-answering-on-natural-questions-nq-em-q-s.md?metric=Throughput%20(Q%2Fs)>): Higher is better; unit: SCALAR.

## Recorded results

| Method | EM | Result date | Report paper |
| --- | --- | --- | --- |
| FiD-large | 51.4 | Not recorded | 68fa6dc31e209131cea3bead |
| FiD-base | 48.2 | Not recorded | 68fa6dc31e209131cea3bead |
| RePAQ rerank | 45.7 | Not recorded | 68fa6dc31e209131cea3bead |
| QAMAT | 44.7 | Not recorded | 68fa6dc31e209131cea3bead |
| RAG | 44.5 | Not recorded | 68fa6dc31e209131cea3bead |
| EMAT-FKSV | 44.3 | Not recorded | 68fa6dc31e209131cea3bead |
| EMAT-SKSV | 43.3 | Not recorded | 68fa6dc31e209131cea3bead |
| RePAQ-xlarge | 41.5 | Not recorded | 68fa6dc31e209131cea3bead |
| DPR | 41.5 | Not recorded | 68fa6dc31e209131cea3bead |
| RePAQ-large | 41.2 | Not recorded | 68fa6dc31e209131cea3bead |
| DensePhrases | 40.9 | Not recorded | 68fa6dc31e209131cea3bead |
| RePAQ-base | 40.9 | Not recorded | 68fa6dc31e209131cea3bead |
| REALM | 40.4 | Not recorded | 68fa6dc31e209131cea3bead |
| RA-ISF | 40.2 | Not recorded | 68fa738b1e209131cea5d1d4 |
| SKRknn | 33.8 | Not recorded | 68fa738b1e209131cea5d1d4 |
| IRCoT | 32.9 | Not recorded | 68fa738b1e209131cea5d1d4 |
| T5-11B | 32.6 | Not recorded | 68fa6dc31e209131cea3bead |
| Least-to-most | 32.5 | Not recorded | 68fa738b1e209131cea5d1d4 |
| RAG | 31.7 | Not recorded | 68fa738b1e209131cea5d1d4 |
| RA-ISF | 31.3 | Not recorded | 68fa738b1e209131cea5d1d4 |
| T5-3B | 30.4 | Not recorded | 68fa6dc31e209131cea3bead |
| Direct | 29.2 | Not recorded | 68fa738b1e209131cea5d1d4 |
| Self-RAG13B | 28.4 | Not recorded | 68fa738b1e209131cea5d1d4 |
| T5-large | 27.6 | Not recorded | 68fa6dc31e209131cea3bead |
| Dense Retriever | 26.7 | Not recorded | 68fa6dc31e209131cea3bead |
| BART-large | 26.5 | Not recorded | 68fa6dc31e209131cea3bead |
| T5-base | 25.8 | Not recorded | 68fa6dc31e209131cea3bead |
| REPLUG | 23.8 | Not recorded | 68fa738b1e209131cea5d1d4 |
| IRCoT | 23.4 | Not recorded | 68fa738b1e209131cea5d1d4 |
| Least-to-most | 22.8 | Not recorded | 68fa738b1e209131cea5d1d4 |
| RAG | 21.6 | Not recorded | 68fa738b1e209131cea5d1d4 |
| SKRknn | 20.8 | Not recorded | 68fa738b1e209131cea5d1d4 |
| Vanilla LM | 17.4 | Not recorded | 68fa738b1e209131cea5d1d4 |

### FiD-large

EM: 51.4. Result ID: 698fdacb3a6c314849fc592d.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69381e209131cea20e9a.md>)

[Implementation](<https://www.sota2.com/github.com/facebookresearch/faiss>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented"}. This record does not assert independent reproduction.

### FiD-base

EM: 48.2. Result ID: 698fdacb3a6c314849fc592c.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69381e209131cea20e9a.md>)

[Implementation](<https://www.sota2.com/github.com/facebookresearch/faiss>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented","Backbone":"T5-base"}. This record does not assert independent reproduction.

### RePAQ rerank

EM: 45.7. Result ID: 698fdacb3a6c314849fc592a.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69521e209131cea2189a.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented"}. This record does not assert independent reproduction.

### QAMAT

EM: 44.7. Result ID: 698fdacb3a6c314849fc5929.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6e671e209131cea3fc25.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented","Hardware":"32 TPU-v3"}. This record does not assert independent reproduction.

### RAG

EM: 44.5. Result ID: 698fdacb3a6c314849fc592b.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69b91e209131cea23c26.md>)

[Implementation](<https://github.com/huggingface/transformers/blob/master/examples/rag/>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented"}. This record does not assert independent reproduction.

### EMAT-FKSV

EM: 44.3. Result ID: 698fdacb3a6c314849fc592e.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Implementation](<https://github.com/uclnlp/EMAT>)

Recorded evaluation configuration: {"Access Delay Setting":"Fast Key, Slow Value (FKSV)","Hardware":"A100 GPU","Backbone":"T5-base"}. This record does not assert independent reproduction.

### EMAT-SKSV

EM: 43.3. Result ID: 698fdacb3a6c314849fc592f.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Implementation](<https://github.com/uclnlp/EMAT>)

Recorded evaluation configuration: {"Access Delay Setting":"Slow Key, Slow Value (SKSV)","Hardware":"A100 GPU","Backbone":"T5-base"}. This record does not assert independent reproduction.

### RePAQ-xlarge

EM: 41.5. Result ID: 698fdacb3a6c314849fc5926.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69521e209131cea2189a.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-only"}. This record does not assert independent reproduction.

### DPR

EM: 41.5. Result ID: 698fdacb3a6c314849fc5928.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa686d1e209131cea1c190.md>)

[Implementation](<https://github.com/facebookresearch/DPR>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented"}. This record does not assert independent reproduction.

### RePAQ-large

EM: 41.2. Result ID: 698fdacb3a6c314849fc5925.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69521e209131cea2189a.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-only"}. This record does not assert independent reproduction.

### DensePhrases

EM: 40.9. Result ID: 698fdacb3a6c314849fc5923.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6a0f1e209131cea25ea5.md>)

[Implementation](<https://github.com/princeton-nlp/DensePhrases>)

Recorded evaluation configuration: {"Model Type":"Retrieval-only"}. This record does not assert independent reproduction.

### RePAQ-base

EM: 40.9. Result ID: 698fdacb3a6c314849fc5924.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69521e209131cea2189a.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-only"}. This record does not assert independent reproduction.

### REALM

EM: 40.4. Result ID: 698fdacb3a6c314849fc5927.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa671d1e209131cea145b9.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-augmented"}. This record does not assert independent reproduction.

### RA-ISF

EM: 40.2. Result ID: 6992ef833a6c314849127844.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Implementation](<https://github.com/OceannTwT/ra-isf>)

Recorded evaluation configuration: {"Model":"GPT-3.5","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### SKRknn

EM: 33.8. Result ID: 6992ef833a6c314849127843.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa70cb1e209131cea4d27b.md>)

Recorded evaluation configuration: {"Model":"GPT-3.5","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### IRCoT

EM: 32.9. Result ID: 6992ef833a6c314849127841.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6fd81e209131cea4791d.md>)

[Implementation](<https://github.com/stonybrooknlp/ircot>)

Recorded evaluation configuration: {"Model":"GPT-3.5","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### T5-11B

EM: 32.6. Result ID: 698fdacb3a6c314849fc5920.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa686b1e209131cea1bfe3.md>)

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

### Least-to-most

EM: 32.5. Result ID: 6992ef833a6c314849127840.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f131e209131cea43b97.md>)

Recorded evaluation configuration: {"Model":"GPT-3.5","Retrieval Configuration":"Without Retrieval"}. This record does not assert independent reproduction.

### RAG

EM: 31.7. Result ID: 6992ef833a6c314849127842.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69b91e209131cea23c26.md>)

[Implementation](<https://github.com/huggingface/transformers/blob/master/examples/rag/>)

Recorded evaluation configuration: {"Model":"GPT-3.5","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### RA-ISF

EM: 31.3. Result ID: 6992ef833a6c31484912784c.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Implementation](<https://github.com/OceannTwT/ra-isf>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### T5-3B

EM: 30.4. Result ID: 698fdacb3a6c314849fc591f.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa686b1e209131cea1bfe3.md>)

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

### Direct

EM: 29.2. Result ID: 6992ef833a6c31484912783f.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa680c1e209131cea19d53.md>)

[Implementation](<https://github.com/openai/gpt-3/blob/master/overlap_frequency.md>)

Recorded evaluation configuration: {"Model":"GPT-3.5","Retrieval Configuration":"Without Retrieval"}. This record does not assert independent reproduction.

### Self-RAG13B

EM: 28.4. Result ID: 6992ef833a6c31484912784b.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa70e51e209131cea4dc1c.md>)

[Implementation](<https://selfrag.github.io/>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### T5-large

EM: 27.6. Result ID: 698fdacb3a6c314849fc591e.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa686b1e209131cea1bfe3.md>)

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

### Dense Retriever

EM: 26.7. Result ID: 698fdacb3a6c314849fc5922.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68101e209131cea19f6e.md>)

Recorded evaluation configuration: {"Model Type":"Retrieval-only"}. This record does not assert independent reproduction.

### BART-large

EM: 26.5. Result ID: 698fdacb3a6c314849fc5921.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa66921e209131cea10fff.md>)

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

### T5-base

EM: 25.8. Result ID: 698fdacb3a6c314849fc591d.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6dc31e209131cea3bead.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa709e1e209131cea4c470.md>)

[Implementation](<https://github.com/google-research/text-to-text-transfer-transformer>)

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

### REPLUG

EM: 23.8. Result ID: 6992ef833a6c31484912784a.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f6b1e209131cea45739.md>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### IRCoT

EM: 23.4. Result ID: 6992ef833a6c314849127847.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6fd81e209131cea4791d.md>)

[Implementation](<https://github.com/stonybrooknlp/ircot>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### Least-to-most

EM: 22.8. Result ID: 6992ef833a6c314849127846.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f131e209131cea43b97.md>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"Without Retrieval"}. This record does not assert independent reproduction.

### RAG

EM: 21.6. Result ID: 6992ef833a6c314849127848.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa69b91e209131cea23c26.md>)

[Implementation](<https://github.com/huggingface/transformers/blob/master/examples/rag/>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### SKRknn

EM: 20.8. Result ID: 6992ef833a6c314849127849.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa70cb1e209131cea4d27b.md>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"With Retrieval"}. This record does not assert independent reproduction.

### Vanilla LM

EM: 17.4. Result ID: 6992ef833a6c314849127845.

[Reporting paper](<https://www.sota2.com/research/paper/68fa738b1e209131cea5d1d4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa680c1e209131cea19d53.md>)

[Implementation](<https://github.com/openai/gpt-3/blob/master/overlap_frequency.md>)

Recorded evaluation configuration: {"Model":"Llama-2-13b","Retrieval Configuration":"Without Retrieval"}. This record does not assert independent reproduction.

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