Forthsay shows what AI assistants say about your site, with the answer behind every number. It runs your questions twice a week through the official APIs for the models behind ChatGPT, Claude, Gemini and Perplexity. Reports show mentions, recommendations and citations, the competitors and sources that appear, and inaccurate claims checked against your facts file. Forthsay also compares results before and after page changes and runs technical SEO checks on key pages. Try a free brand check with 32 answers from four engines, with no card required.