# FusionAuth: how AI models rank it, September 2026

IT AI Recommendation Index, September 2026 Edition. Named in 16 judge labels across 2 categories by 8 of 12 models. Page: https://it-ai-index.com/vendors/fusionauth/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Customer identity and access management | 4% | 8 | 13% | 15 |
| Multi-factor authentication | 0% | 54 | 0% | 1 |

## What the models said for it

- "FusionAuth is an API-first platform designed for developers that's flexible, affordable, and packed with features." (Claude Haiku 4.5, CIAM)
- "or FusionAuth Community Edition if you want a truly free, self-hosted solution with full control" (GLM 4.7 FlashX, CIAM)
- "Best free self-hosted option ... For pure cost at any scale, self-host FusionAuth" (Grok 4.1 Fast, CIAM)
- "Organizations that prefer open‑source, self‑hosted control. | Requires ops expertise" (GLM 4.7 FlashX, CIAM)

## And against it

- "Avoid ... open-source like Keycloak/FusionAuth (high ops overhead)" (Grok 4.1 Fast, CIAM)
- "caution if your team requires full on-prem control or strict data-residency guarantees" (Perplexity Sonar, CIAM)

## Record

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