Our Test · 24 Oct 2026
What AI Assistants Cited When A Homeowner Asked For An HVAC Company
We asked ChatGPT and Perplexity, with web search on, five questions a homeowner in Columbus, Ohio would ask, such as “Who is the best HVAC company in Columbus, Ohio?”, and we logged every source in their 16 answers.
54 of 120Perplexity sources that were HVAC contractors’ own websites. ChatGPT cited contractor websites 12 times in 30 citations.
14 of 37Times a recommended company was described by its BBB accreditation or grade.
2 of 2Cost answers that took their price ranges from one contractor’s published price list.
OpenAI gpt-6.1-sol with web search and Perplexity sonar, through their APIs: 5 prompts, 3 asked twice, 8 answers each. The first company named repeated in only 1 of 6 repeated prompts. Gemini and Claude were not measured.