# The Aquaria Test: Entity Fragmentation in AI Search

> Five AI models. One question. Five different companies. A controlled experiment revealing how frontier AI systems produce irreconcilable answers when no single entity dominates a name token.

- Canonical HTML: https://bigsearchai.com/research/aquaria-test
- Published: 2026-05-22
- Tags: AI Visibility Gap, Entity Fragmentation, Entity Collision, Web4, Research, AI Identity
- Full report: https://bigsearchai.com/research/aquaria-test

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