Geology and HubSpot's AI Search Grader are not really competitors, they are different tools at different stages of the buying cycle. The AI Search Grader is a free, single-shot visibility check that gives you a score and a few recommendations. Geology is a Generative Engine Optimization platform: ongoing measurement across ChatGPT, Perplexity, Gemini, Copilot, and Google AI Overviews, plus page audits, prompt management, content briefs, and an agentic optimization layer that ships fixes.
If you want a fast snapshot of where you stand in AI search today, the AI Search Grader is a useful first read. If you want a working program that improves visibility week over week, Geology is the right next step.
At a glance
| Dimension | Geology | HubSpot AI Search Grader |
|---|---|---|
| Best for | Mid-market and B2B teams running an ongoing GEO program | Anyone who wants a quick, free read on AI search visibility |
| AI platforms tracked | ChatGPT, Perplexity, Gemini, Copilot, Google AI Overviews | One-time scoring across major AI assistants |
| Execution support | Yes. Page audits, prompt monitoring, content briefs, agentic optimization | None. Score and recommendations only |
| Pricing model | Subscription, transparent | Free |
| Time to first insight | Same-day audit | Score in minutes |
| Reporting | Self-serve dashboard plus exports | A single-page grade with summary recommendations |
| Best paired with | An in-house team that wants to ship | A first read before scoping a GEO investment |
What HubSpot AI Search Grader does
HubSpot's AI Search Grader is a free tool that gives a brand a one-time visibility score across the major AI assistants. You enter your company name and a few prompts, and it returns a graded report on how often you appear, sentiment, and a list of high-level recommendations. The tool sits inside HubSpot's marketing playbook as a top-of-funnel asset, the same shape as their Website Grader and Email Marketing Grader. It is useful as a first read on whether a brand is visible in AI search and where the obvious gaps sit. The boundary is clear: it is a marketing tool, not a platform. There is no ongoing tracking, no prompt portfolio, no page-level audit pipeline, and no execution layer.
What Geology does differently
Geology runs the ongoing program a single grade can only suggest. Cross-platform tracking watches how your brand surfaces across ChatGPT, Perplexity, Gemini, Copilot, and Google AI Overviews on a continuous basis. Page audits flag the pages an AI model is misreading and explain why, with structured findings your engineers can act on. Prompt management captures the queries your buyers actually run and watches how mentions move week by week. The content workspace turns gaps into briefs with target prompts and angles. An agentic layer applies common fixes automatically: schema, FAQ structure, citation hygiene, internal linking, answer-shaped copy. AI visibility shifts every week as models retrain, so a one-time score ages fast. Geology is the system of record plus the engine that ships the work.
Pricing
HubSpot's AI Search Grader is free, the way HubSpot's other graders are free: a single-page result delivered as a lead-gen asset. Geology is sold on a transparent subscription with public tiers. The two are not interchangeable. The grader is a snapshot, the platform is a program. Most teams use the grader once and move to a paid GEO platform when they decide AI search is worth ongoing investment.
When HubSpot AI Search Grader wins
If you want a fast, free read on whether your brand shows up in AI assistant answers and what the obvious next steps look like, the AI Search Grader is hard to beat. It is a clean way to make the internal case for AI search investment before scoping a paid platform.
When Geology wins
If you have already decided AI visibility matters and need ongoing measurement plus the execution that moves it, Geology is the better fit. You get cross-platform tracking, page audits, content briefs, and agentic fixes in one workflow, so the program runs every week instead of resetting every grade.