# Artificial Analysis Openness Index (AA Openness Index)

> A display-only Artificial Analysis model-openness index.

Canonical page: https://benchlm.ai/benchmarks/aaopennessindex

- Category: [Knowledge](/knowledge)
- Last updated: September 27, 2026

## About AA Openness Index

- Year: 2026
- Tasks: Model openness assessment
- Format: Index score
- Difficulty: Display-only external reference
- Paper: [Artificial Analysis Openness Index](https://artificialanalysis.ai/evaluations/artificial-analysis-openness-index)

Stored separately from capability benchmarks and excluded from weighted scoring.

AA Openness Index is currently displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Leaderboard (4 models)

| Rank | Model | Creator | Score |
|------|-------|---------|-------|
| 1 | [Nemotron 3 Ultra](/models/nemotron-3-ultra) | NVIDIA | 83.3% |
| 2 | [Nemotron 3.5 Lightning 30B A3B NVFP4](/models/nemotron-3-5-lightning-30b-a3b-nvfp4) | NVIDIA | 83.3% |
| 3 | [MiniCPM5-1B](/models/minicpm5-1b) | OpenBMB | 83.3% |
| 4 | [Nemotron 3 Nano 30B](/models/nemotron-3-nano-30b) | NVIDIA | 83.3% |

## FAQ

### What does AA Openness Index measure?

A display-only Artificial Analysis model-openness index.

### Which model scores highest on AA Openness Index?

Nemotron 3 Ultra by NVIDIA currently leads with a score of 83.3% on AA Openness Index.

### How many models are evaluated on AA Openness Index?

4 AI models have been evaluated on AA Openness Index on BenchLM.

### Does AA Openness Index affect BenchLM's overall score?

Not directly. AA Openness Index is still displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Compare Top Models on AA Openness Index

- [Nemotron 3 Ultra vs Nemotron 3.5 Lightning 30B A3B NVFP4](/compare/nemotron-3-5-lightning-30b-a3b-nvfp4-vs-nemotron-3-ultra)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 vs MiniCPM5-1B](/compare/minicpm5-1b-vs-nemotron-3-5-lightning-30b-a3b-nvfp4)
- [MiniCPM5-1B vs Nemotron 3 Nano 30B](/compare/minicpm5-1b-vs-nemotron-3-nano-30b)