nixal.ai

Research

AI Citation Research

I run controlled experiments on how AI answer engines — Perplexity, ChatGPT, and others — actually pick and cite their sources. Every experiment ships its findings, method, and raw data in public. No theory, just what the engines did.

Experiment 1 — Can you steer what Perplexity cites?

75 searches in one software category (5 queries × 5 source instructions × 3 repeats), every citation classified.

Method & full dataset — 926 classified citations, 4 downloadable CSVs

Experiment 2 — Who really gets cited about a brand?

62 sources two engines cited about one brand (PETLIBRO), across 15 queries and three buyer stages, each classified by its own stated incentive.

Experiment 3 — Same query, different engines

The playbook

New experiments land here as I run them. About this research →