# Arelle: how AI models rank it, October 2026

Finance AI Recommendation Index, October 2026 Edition. Named in 7 judge labels across 1 categories by 6 of 14 models. Page: https://finance-ai-index.com/vendors/arelle/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| SEC and disclosure reporting | 2% | 7 | 14% | 7 |

## What the models said for it

- "Arelle is the best *free/open-source* option if you have the technical capacity to manage it" (Perplexity Sonar, Disclosure reporting)

## And against it

- "Open-source (Arelle) is free, but needs internal resources to operate" (Claude Haiku 4.5, Disclosure reporting)

## Record

- Method: https://finance-ai-index.com/methodology/
- Raw judge labels and full responses: https://finance-ai-index.com/data/
- License: CC BY 4.0. Cite as Finance AI Recommendation Index, October 2026 Edition, finance-ai-index.com.