AI benchmarks and leaderboards are different things
Learn the difference between a benchmark, an evaluation run and a leaderboard, and use each to answer the right question.
LLM Stats
CorpusQA 1M is a long-context question answering benchmark designed to evaluate models at approximately 1 million token contexts. Models are scored on accuracy when retrieving and reasoning over information distributed across an extremely long input corpus.
These are source-reported observations, not independent reruns by this site. Check the task version, evaluation protocol, unit and reporting date before comparing models. Results from different setups are not a universal ranking.
Shown in source observation order, not ranked. Dates retain the precision provided by the source.
| Model | Value | Unit | Protocol | Reported date and basis | Source |
|---|---|---|---|---|---|
| DeepSeek-V4-Pro-Max | 0.62 | Not recorded | Not recorded | 2026-04-23 · model_announcement | LLM Stats |
| DeepSeek-V4-Flash-Max | 0.605 | Not recorded | Not recorded | 2026-04-23 · model_announcement | LLM Stats |
| DeepSeek-V4-Flash-0423 | 0.593 | Not recorded | Not recorded | 2026-04-23 · model_announcement | LLM Stats |