AI Companies in AI Answers: Who ChatGPT, Claude, Gemini and Perplexity Name
Evidence pack, 5W Public Relations Research

Measured: October 26, 2026 · 24 questions × 3 runs · 288 AI answers
This pack holds the measurement data behind the report. Every number in the report can be
recounted from these files. Counts in the report come from summary.csv and per_engine.csv.

Files:
- summary.csv: One row per tracked name: answers naming it, appearance rate and 95% interval, first-mention position, own-domain citation, citation share, Google AI Overview counts and five-engine totals.
- per_engine.csv: The same counts split by engine (ChatGPT, Claude, Gemini, Perplexity).
- significance.csv: Pairwise comparisons between the leading names (z-test, p-value, whether the 95% intervals overlap).
- sources.csv: Cited domains: number of citations, share of all citations, and how many answers cited each domain.
- entity_rollups.csv: Spellings and name variants counted together with each tracked name.
- trials.csv: One row per answer: engine, question, run, names found, citations, measurement time.
- raw_responses.jsonl: The full text of every answer and Google AI Overview, with its citations, one JSON record per line.

SHA-256 checksums:
31db814e3037cd22e7e427718ae1f3c5f75fb5dbf9a5961a67bc13757d2494b0  summary.csv
58dd0eea5c00bd031052f5325ccd3fe4b39fa921e1cc82848d4478e0db9ef6ba  per_engine.csv
8967f2d16bc8c32dc9597a47c88e7495eb2567c316f440641a4ffda60bc6c6ec  significance.csv
3c45372874751767af2067b3cdd18f81c02a349a157434c09231e98c47f052e1  sources.csv
758440f16aa3050b9f2e79e73331d423ff5e713e730203a3ec3dbd0e4eb0042a  entity_rollups.csv
cdc07f1d9271895ad6aa67b47a58084a55c4d25d96eb9037eb0cebeced77c427  trials.csv
c15777967cdc2d03255db83b0ab74f801f428b322b8c6842f4dd35b71729e984  raw_responses.jsonl

Questions or corrections: info@5wpr.com
