I gave the free tier of Gemini and a paid tier of Claude the same question about court ceremony in Huizinga’s The Waning of the Middle Ages. I wanted a passage I could check, with a page number. The responses differed considerably.
prompt to give to the LLM
What did Huizinga say about court ceremony in The Waning of the Middle Ages? Quote the passage with page number.
Gemini Flash Lite returned the opening sentence of the book. It was a quotation, but it didn’t answer the question about court ceremony.
Response from Gemini Flash Lite.
Claude Opus 5 found material relevant to court ceremony and didn’t fabricate page numbers.
Response from Claude Opus 5.
For this question, Claude gave me a more useful place to start. It also showed why an assessment of an AI answer needs to name the model and the task: these responses would lead to quite different impressions of how useful AI is for historical work.
I compared two providers as well as two subscription tiers, so this trial doesn’t isolate the effect of paying for access. It doesn’t establish how often either model fabricates sources, either. More questions and repeated trials would be needed to make those claims. What I can report here is the difference between these two answers.
This experiment is licensed under Creative Commons BY-NC-SA 4.0. You're welcome to share and adapt it for noncommercial purposes, with credit, as long as you share your adaptation under the same license.
Suggested citation
Jonathan Seyfried. "Comparing Two Models on a Question About Huizinga." AI Workbench, Amaranth, University of New Mexico, September 1, 2026. https://amaranth.unm.edu/ai-workbench/research/model-tiers.html. Licensed under CC BY-NC-SA 4.0.