CommonsenseQA 2
Commonsense yes/no questions. A 2022 benchmark, saturated for current models; kept for history.
As of 19 Sept 2026, T5-11B leads CommonsenseQA 2 on BenchLeader with 67.8%, ahead of T5-3B at 60.2%, across 6 model configurations with a published result.
- Published by
- Epoch AI Benchmarking Hub
- Category
- Reasoning
- Index weight
- Reference only
- Models
- 6
- Data as of
- 19 Sept 2026
CC BY 4.0 — Epoch AI, ‘AI Benchmarking Hub’, epoch.ai/benchmarks. Mirrored boards credit their original publishers.
What the test looks like
Commonsense yes/no questions.
How it is scored
Accuracy, as compiled by Epoch AI from published results.
What to keep in mind
Saturated: frontier models score near the ceiling, so it separates only older or smaller models, and results are largely self-reported by developers.
- 1T5-11B67.8%
- 2T5-3B60.2%
- 3GPT-3.5 Turbo (older v0613)57.0%
- 4T5-Large54.6%
- 5InstructGPT 175B52.9%
- 6Llama 2-70B50.0%
6 of 6
| # | |||
|---|---|---|---|
| 1 |  T5-11BGoogle | 67.8% | – |
| 2 | T5-3BGoogle | 60.2% | – |
| 3 |  GPT-3.5 Turbo (older v0613)OpenAI | 57.0% | – |
| 4 | T5-LargeUnknown | 54.6% | – |
| 5 | InstructGPT 175BOpenAI | 52.9% | – |
| 6 |  Llama 2-70BMetaopen ↗ | 50.0% | 34.9 |
Cite as: BenchLeader, “CommonsenseQA 2 leaderboard”, https://www.benchleader.com/benchmarks/csqa2, data as of 19 Sept 2026.
CommonsenseQA 2: questions
- What does CommonsenseQA 2 measure?
- Commonsense yes/no questions. Scores are reported in percent of tasks solved; higher is better.
- Which AI model leads CommonsenseQA 2?
- T5-11B leads CommonsenseQA 2 with 67.8% as of 19 Sept 2026, ahead of T5-3B at 60.2%.
- How many models have CommonsenseQA 2 results?
- 6 model configurations have a CommonsenseQA 2 result on BenchLeader, all taken from Epoch AI Benchmarking Hub.
- Who runs CommonsenseQA 2 and how often is it updated?
- CommonsenseQA 2 is published by Epoch AI Benchmarking Hub. BenchLeader re-reads the published results every morning and records the date each result was published.
- Does CommonsenseQA 2 count toward the BenchLeader Index?
- No. CommonsenseQA 2 is shown for reference but left out of the composite index.