Data infrastructure / open access
Public data catalog
Download the records behind the research, including market shares, concentration measures, official events, and source references. Coverage and missing values are documented for each dataset.
Source records move through market definitions, concentration calculations, confidence labels, and public data endpoints — 45 source records, 12 market profiles, 235808 record rows plus a 1 row summary endpoint across 62 API endpoints.
Record rows
235,808
Sources
45
Endpoints
62
Aug 15, 2026
Latest source review
62
Dataset families
4
Source types
Market-definition atlas
What market is this metric measuring?
Inspect each product boundary, geography, denominator, proxy choice, and permitted comparison use before treating concentration values as economic evidence.
Selected definition contract
U.S. generative AI assistant usage
Product boundary
Consumer generative AI assistant usage across StatCounter-tracked assistants
Geographic boundary
United States
Measurement basis
StatCounter all-platform AI chatbot usage share
Denominator
The tracked assistant shares reported by StatCounter for the monthly snapshot
Included
The assistants listed in the StatCounter share table
Excluded
AI revenue, total users, enterprise use, model supply, chips, and cloud infrastructure
Method and limitations
Compute HHI only from the listed StatCounter percentages for the same U.S. monthly usage snapshot.
The usage series is a public web-analytics proxy and does not represent the broader AI supply chain or revenue concentration.
Boundary source
AI chatbot market share in United States of America May 2026
StatCounter Global Stats · accessed 2026-06-23
Open data needs public interpretation.
The API is a starting point, not a legal conclusion. Pair downloads with methodology notes, source records, and the data-gaps report when citing market concentration.