AA Openness Index leaderboard
As of 9 Nov 2026, the top score on AA Openness Index is 88.9, shared by Olmo 3.1 32B, Molmo 7B D, Apertus 70B Instruct, Apertus 8B Instruct, K2 Think V2 and 1 other, across 59 model configurations with a published result (Artificial Analysis, result dated 12 Dec 2025). How open a model actually is: weights, licence, training details and reproducibility. A measure of openness, not capability, so it is never part of the quality index. AA Openness Index is shown for reference only and does not count toward the BenchLeader Index.
Key facts (as of 9 Nov 2026)
- Olmo 3.1 32B, Molmo 7B D, Apertus 70B Instruct, Apertus 8B Instruct, K2 Think V2 and 1 other share the top AA Openness Index score at 88.9 (Artificial Analysis, 9 Nov 2026).
- AA Openness Index: How open a model actually is: weights, licence, training details and reproducibility. A measure of openness, not capability, so it is never part of the quality index (Artificial Analysis).
- 59 model configurations have a published AA Openness Index result on BenchLeader (BenchLeader, 9 Nov 2026).
- AA Openness Index does not feed the BenchLeader Index; it is shown for reference (BenchLeader methodology).
How open a model actually is: weights, licence, training details and reproducibility. A measure of openness, not capability, so it is never part of the quality index.
- Published by
- Artificial Analysis
- Category
- Metadata
- Index weight
- Reference only
- Models
- 59
- Data as of
- 9 Nov 2026
Source: Artificial Analysis (artificialanalysis.ai). Data taken from the public leaderboard.
- 1Olmo 3.1 32B (thinking)88.9
- 2Olmo 3.1 32B88.9
- 3Molmo 7B D88.9
- 4Apertus 70B Instruct88.9
- 5Apertus 8B Instruct88.9
- 6K2 Think V2 (low)88.9
- 7K2 Think V2 (medium)88.9
- 8K2 Think V2 (high)88.9
- 9K2 Think V2 (thinking)88.9
- 10Olmo 3 7B Think (thinking)88.9
- 11Olmo 3 7B Think88.9
- 12Nemotron 3 Ultra 550B A55B (thinking)83.3
- 13Nemotron 3 Nano 30B A3B (thinking)83.3
- 14Nemotron 3.5 Super VL83.3
- 15Nemotron 3.5 Lightning83.3
More metadata benchmarks · All LLM benchmarks
Cite as: BenchLeader, “AA Openness Index leaderboard”, data as of 9 Nov 2026, https://www.benchleader.com/benchmarks/aa_openness_index.
AA Openness Index: questions
- What does AA Openness Index measure?
- How open a model actually is: weights, licence, training details and reproducibility. A measure of openness, not capability, so it is never part of the quality index. Scores are reported in index; higher is better.
- What is the top score on AA Openness Index?
- As of 9 Nov 2026, the highest score on AA Openness Index is 88.9, shared by Olmo 3.1 32B, Molmo 7B D, Apertus 70B Instruct, Apertus 8B Instruct, K2 Think V2 and 1 other. Scores come from Artificial Analysis and are re-read daily.
- Which AI model leads AA Openness Index?
- Olmo 3.1 32B, Molmo 7B D, Apertus 70B Instruct, Apertus 8B Instruct, K2 Think V2 and 1 other tie for first on AA Openness Index at 88.9 as of 9 Nov 2026.
- How many models have AA Openness Index results?
- 59 model configurations have a AA Openness Index result on BenchLeader, all taken from Artificial Analysis.
- Who runs AA Openness Index and how often is it updated?
- AA Openness Index is published by Artificial Analysis. BenchLeader re-reads the published results once a day and records the date each result was published.
- Does AA Openness Index count toward the BenchLeader Index?
- No. AA Openness Index is shown for reference but left out of the composite index.