By MachinesWe measure how AI picks businesses. Zeros included.

We measure how AI picks businesses. Zeros included.

By Machines is an independent measurement lab. Every week it asks four AI assistants — ChatGPT, Gemini, Perplexity and Google AI Mode — the questions a buyer asks, seven times each, and counts which firms they name. Frequencies with confidence intervals, sources, the method and the CSV files are published here, zeros included.

4engines, through their APIs
40questions, frozen and hashed
5cities the questions come from
7runs per question, every week

Latest reading — Relocation Lab

Vertical #1: immigration lawyers, tax advisors and company-formation agents in Portugal, Spain and Cyprus, asked from Lisbon, Madrid, Limassol, London and New York.

First reading of the Relocation Lab: Monday 2026-10-19. The panel has been running on the lab server since 2026-09-29; the first weeks of data are published together with the first reading.

Series page: all weeks, method version, CSV files →

Does AI see you?

A free check for firms in a measured vertical: how often the four engines name your firm on the buyer's questions, which sources they cite instead, and what your site tells a machine reader. How to request it →

What we publish

Only our own measurements. A frozen prompt panel, ≥7 runs per prompt and engine, every answer stored with its citations, frequencies with 95 % intervals. Zeros are published; positions are not a metric.

What we do not do

No rankings of "the best" firms, no quality judgements, no paid placements, no self-citation networks, no mass AI text without data. Firms are named exactly as the engines name them.

Who this is for

Firms in the measured vertical who want numbers instead of opinions, and practitioners of AI search who want reproducible data. Pricing for audits and monitoring is a stated range, not a promise of results.