AI Model Showdown: User Tests Four AI Systems on High School Humanities Quiz, Finding Gemini 3.1 PRO Most Accurate with Only 3 Errors

A Reddit user compared four AI models—Grok 4.20 Expert, Gemini 3.1 PRO, Claude Sonnet 4.6, and GPT 5.3—on a 15-question multiple-choice humanities exam at high school level

Gemini 3.1 PRO performed best with only 3 errors, followed by Grok with 4 errors, Claude Sonnet with 5 errors, and GPT with 6 errors

The user questions whether the comparison was conducted fairly and requests additional AI competitors be included in future testing