Short answer
Use a fixed prompt list, run each prompt several times per assistant, use clean or logged-out sessions where possible, keep location consistent, and record the full answer, brands named and sources cited. Compare months, not single runs.
Record for each run
| Field | Example |
|---|---|
| Date and assistant | 2026-10-12, ChatGPT |
| Prompt | Best close software for NetSuite |
| Brands named, in order | A, B, You |
| Sources cited | URLs |
| Notes | Wrong price stated |
Questions
Why logged out?
Memory and personalisation can change answers for a logged-in user.
Facts checked against the sources below on 12 October 2026. Platforms change quickly: if something here no longer matches what you see, tell us and we will update it.
