Response review
ChatGPT · paid, api, api · api
Who are my U.S. senators in Iowa?
Captured 2026-07-10 18:44:54 UTC
Model gpt-5-2025-08-07
As of July 10, 2026, Iowa’s U.S. senators are Chuck Grassley and Joni Ernst (both Republicans). ([senate.gov](https://www.senate.gov/senators/index.htm?State=))
Cited sources
Grade
Judge
accurate
Judge model claude-opus-4-8
The response correctly names both Iowa senators, Chuck Grassley and Joni Ernst, matching the ground truth.
Human
not reviewed
Final
accurate
Ground truth
senators: Joni Ernst, Chuck Grassley
senate.gov 100
as of 2026-07-14
https://www.senate.gov/general/contact_information/senators_cfm.xml