AA Intelligence Index leaderboard
- models measured
- 213
- lead over #2
- +1.6
- median
- 18.5
Leader on AA Intelligence Index · read October 21
57.6AA Intelligence Index
1 Claude Opus 5.557.6On October 21, 2026, 213 of our catalog's models had a AA Intelligence Index result, and Anthropic Claude Opus 5.5 led with 57.6.
Artificial Analysis runs a set of evaluations itself (reasoning, knowledge, math, coding and agentic tasks) and combines them into one score from 0 to 100. Its methodology page lists the evaluations in the current version. The number is the index as Artificial Analysis publishes it and OpenRouter lists it.
Role in the index
We collect this benchmark and show it as supporting evidence. It is not part of the Vibe Coding Index, because it measures something other than coding and the index is about coding. Read the methodology
| # | Model | Result | Evidence | Coding index | Output $/Mtok |
|---|---|---|---|---|---|
| 1 | Claude Opus 5.5Anthropic | 57.6 | 92.2 | $20.00 | |
| 2 | Claude Sonnet 5.5Anthropic | 56.0 | 88.9 | $10.00 | |
| 3 | Claude Fable 5.1Anthropic | 53.4 | 89.1 | $50.00 | |
| 4 | GPT-6 AstraOpenAI | 52.7 | 88.7 | $50.00 | |
| 5 | Gemini 4 ArgonGoogle | 52.6 | 80.5 | $10.00 | |
| 6 | GPT-6.1 SolOpenAI | 51.8 | 88.7 | $10.00 | |
| 7 | Claude Opus 5Anthropic | 50.8 | 81.8 | $25.00 | |
| 8 | Claude Fable 5Anthropic | 49.6 | 82.1 | $50.00 | |
| 9 | Muse Spark 1.3Meta | 48.1 | 79.7 | $4.25 | |
| 10 | GPT-6 SolOpenAI | 47.6 | 82.8 | $10.00 |
Only models in our catalog are listed, and each appears once with its best published run. 213 rows were read from the source on October 21, 2026, and rows that match no catalog model are left out.
Cheapest good model on AA Intelligence Index · Best open-weight model on AA Intelligence Index