Answer Engine Optimization Grader
Use HubSpot's free AI Search Tool to understand how ChatGPT, Perplexity, and Gemini characterize your brand. Get a scored, cross-validated assessment across five dimensions – including sentiment, share of voice, source quality, and narrative themes –along with a written interpretation of your results.
The search landscape has fundamentally transformed. AI-powered search now processes billions of queries daily, with the majority of buyers using AI search engines to research solutions. When prospects search for your products or services, they are increasingly getting synthesized answers from AI search tools like ChatGPT, Perplexity, and Gemini – often without ever visiting your website.
This zero-click reality demands a new optimization approach: AI search engine optimization (AEO). Unlike traditional SEO that focuses on rankings and traffic, AI search SEO centers on how AI systems understand, synthesize, and present your brand information. HubSpot's AI Search Tool provides the comprehensive analysis you need to master this new paradigm.
HubSpot's AI Search Tool evaluates your brand across five scored dimensions — Sentiment Analysis, Presence Quality, Brand Recognition, Share of Voice, and Market Position — and cross-validates results across GPT-5.2, Perplexity, and Gemini to produce a composite score out of 100, a written interpretation, and an exportable report.

This AI search tool provides an extensive suite of features:

Our AI search platform provides advanced insights into:
Narrative themes: This surfaces the core stories AI platforms consistently associate with your brand. These are the recurring characterizations – the angles, attributes, and associations AI models have formed about your company – that shape how users perceive you through AI-generated responses. Understanding your narrative themes tells you not just whether AI describes you positively, but what it emphasizes when it does.

HubSpot's AI Search Tool also provides:
Input your company name, location, industry, and products or services. The tool accepts any brand — analyze your own company or run the same analysis on a competitor.
The tool sends your brand information to GPT-4o, Perplexity, and Gemini simultaneously, asking each model how it characterizes your brand based on its training data. Results are cross-validated across all three platforms.
Your results are calculated across all five dimensions, producing individual dimension scores and a total composite score out of 100.
Complete the short form to receive your written interpretation, narrative theme analysis, source quality breakdown, and an exportable report you can reference over time or use to compare against competitor analyses.
The best thing that HubSpot has done since the Website Grader. A really nice marketing move!
Love this new tool to understand how AI sees your brand.
Jennifer Nixon
Independent Consultant
Love this. Tested it. Results are amazing. They show me exactly what I’m doing right (or wrong…).
This is so cool! What a genius idea to have AI figure out your share of voice!
Become an expert in SEO for AI search engines with these best practices for AI search optimization.
Learning how to optimize for AI search starts with structure:
The best AI search optimization tools for beginners emphasize these fundamentals:
Use these AI search engine optimization techniques that drive results:
The best AI search optimization tools for marketers leverage:
AI-powered search platforms like ChatGPT, Perplexity, and Gemini generate synthesized answers to user queries rather than returning a list of links. They draw on training data from across the web to characterize brands, compare options, and make recommendations – often without users clicking through to any website. Your brand's representation in those responses is determined by what AI models have learned about you through training, not by your current search rankings.
AI search monitoring tracks how AI platforms represent your brand in their characterizations and responses. HubSpot's AI Search Grader provides a scored, cross-validated assessment of your brand's AI presence across GPT-4o, Perplexity, and Gemini — covering sentiment, recognition, share of voice, source quality, narrative themes, and market positioning.
Traditional SEO tools measure keyword rankings, backlinks, and website traffic. HubSpot's AI Search Tool measures how AI platforms characterize your brand based on their training data – the tone they use, the narrative themes they associate with you, how prominently they position you in category conversations, and how credible the sources shaping that characterization are. These are distinct signals that conventional SEO tools don't capture.
Your composite score out of 100 is the sum of five dimension scores: Sentiment Analysis (up to 40 pts), Presence Quality (up to 20 pts), Brand Recognition (up to 20 pts), Share of Voice (up to 10 pts), and Market Competition (up to 10 pts). Each dimension score is calculated from structured assessments returned by GPT-5.2, Perplexity, and Gemini, cross-validated across all three platforms.
Yes. Enter any competitor's brand name to run the same five-dimension AI search analysis and compare their scores against your own. Export both reports to track relative positioning over time.
HubSpot's free AI Search Grader is the most comprehensive free tool for understanding how AI platforms characterize your brand. It cross-validates results across GPT-5.2, Perplexity, and Gemini simultaneously – covering five distinct dimensions of brand perception: sentiment analysis, presence quality, brand recognition, share of voice, and market position.
Beyond a numeric score, HubSpot's AI Search Tool delivers a written interpretation of your results, narrative theme analysis surfacing the stories AI consistently associates with your brand, source quality assessment identifying what's driving those characterizations, and an exportable report — all at no cost and with no technical setup required.