Stanford Question Answering Dataset v2.0.

Historical extractive QA benchmark over Wikipedia paragraphs with unanswerable questions. Valuable as a regression test, but saturated for frontier LLM comparison.

Best published scores.

28 results indexed across 2 metrics. Shaded row marks current SOTA; ties broken by submission date.

Primary

f1 · higher is better

All metrics

em, f1

5 steps
of state of the art.

Each row below marks a model that broke the previous record on f1. Intermediate submissions are kept in the leaderboard above; only SOTA-setting entries are re-listed here.

Higher scores win. Each subsequent entry improved upon the previous best.

1. Jun 1, 2016Logistic Regression (SQuAD baseline)Stanford NLP51
2. Jan 1, 2018SLQA+ (single model)Alibaba iDST87.02
3. Mar 1, 2019BERT + ConvLSTM + MTL + Verifier (ensemble)Layer 6 AI89.29
4. Jul 26, 2019RoBERTa89.80
5. Sep 26, 2019ALBERT ensemble92.20

10 papers
tied to this benchmark.

Every paper below corresponds to at least one row in the leaderboard above. Click through for the arXiv preprint and, when available, the reference implementation.

Neighbouring benchmarks.

Other Question Answering datasets on Codesota.

Have a score that beats
this table?

Submit a checkpoint and a reproduction script. We will run it, publish the score, and — if it takes the top — annotate the step on the progress chart with your name.

• 01A public checkpoint or API endpoint
• 02A reproduction script with frozen commit + seed
• 03Declared evaluation environment (Python, deps)
• 04One row per metric declared by this dataset
• 05A contact so we can follow up on discrepancies