| Product | Ideal for | Price from | Free version | |
|---|---|---|---|---|
| Free first LLM check | Free | Yes | Visit | |
| Checking inside an SEO suite | See website | Free trial | Visit | |
| Brand checks in AI answers | See website | Free trial | Visit | |
| Ongoing AI visibility checks | See website | Free trial | Visit | |
| AI checks with sentiment | See website | Free trial | Visit | |
| Agency checks with classic ranks | See website | Free trial | Visit | |
| Deep AI visibility checks | See website | Free trial | Visit | |
| Low-cost per-check readings | See website | Free trial | Visit |
We compared LLM SEO checking tools on one-off check quality, prompt handling, platform coverage and price. A checker answers whether AI engines name you today, while a tracker answers whether that changed over time. Our pick for a first check is the Frase free checker, with Otterly as the ongoing-checking alternative.

Ideal for: Free first LLM check

Frase AI Visibility Checker reads your domain and returns a ChatGPT result without signup, with Perplexity and Gemini available with email. A free GEO score rates one page for quotability. That makes it the best first check. Ongoing daily tracking needs a paid Frase plan.
For most readers, the deciding question with Frase AI Visibility Checker is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: Checking inside an SEO suite

Semrush AI Search checks AI visibility across major platforms inside a full SEO suite. That breadth suits teams already using Semrush for classic SEO. AI features often need higher tiers, so confirm coverage for your plan before relying on checks.
For most readers, the deciding question with Semrush AI Search is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: Brand checks in AI answers

Ahrefs Brand Radar checks brand mentions in AI answers with competitor views and SEO context. That depth suits SEO-led teams checking AI presence alongside rankings. Add-on pricing applies, and coverage varies by region, so verify your markets.
For most readers, the deciding question with Ahrefs Brand Radar is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: Ongoing AI visibility checks
Otterly checks AI visibility across ChatGPT, Perplexity and AI overviews with sentiment views. Recent pricing reports put entry plans near 29 dollars a month for a limited prompt set. That low friction makes it a good step up from a free checker to ongoing monitoring.
For most readers, the deciding question with Otterly is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: AI checks with sentiment
Peec AI checks AI visibility with sentiment and competitor comparisons, including regional views. Recent pricing reports put entry plans near 95 to 119 dollars a month depending on billing. Prompt quotas limit lower tiers, so price your prompt list before choosing.
For most readers, the deciding question with Peec AI is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: Agency checks with classic ranks
SE Ranking AI Search checks AI visibility alongside classic rankings, with white-label reporting for agencies. That combination suits agencies checking both channels for clients. AI coverage is narrower than dedicated checkers, and prompt limits affect cost.
For most readers, the deciding question with SE Ranking AI Search is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: Deep AI visibility checks
Profound offers deep AI visibility checks with conversation-level detail and enterprise reporting. That depth suits organisations treating AI search strategically. Pricing targets larger teams, so a single one-off check is better served by a free checker first.
For most readers, the deciding question with Profound is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.

Ideal for: Low-cost per-check readings
ZipTie offers per-check AI visibility readings, with recent comparisons noting pricing near one cent per check for basic readings. That model suits teams wanting occasional checks without a monthly subscription. The feature set is narrower than suites, and per-check costs add up at high volume.
For most readers, the deciding question with ZipTie is fit rather than raw feature count. Check the plan limits that matter to you, such as seats, usage caps and what happens when a trial ends, before you commit to a paid tier. If the free tier or trial covers your core task, use it for a full week of real work before paying, and keep an eye on renewal terms and cancellation steps. That short test usually tells you more than any feature list, and it keeps the choice grounded in how you actually work day to day.
We compared official feature pages, pricing pages, app store listings, privacy policies and public reviews for each option below. We kept only products that exist and work now, that fit the topic directly, and whose official homepage we could confirm. Where a price was not published clearly, we wrote See website rather than guessing, and we favoured options with a free tier or trial where one exists.
Start with a free checker before buying anything. A free reading from Frase or a trial check from Otterly tells you whether AI engines mention you at all, which decides whether ongoing tracking is worth paying for.
Check the same prompts across platforms. A brand can appear in ChatGPT but not in Perplexity or Gemini, and that gap reveals where content or citations need work. Cross-platform checks give a fuller picture than any single engine.
Record the full answer, not just the mention. Save the AI response, its sentiment and its citations, so you can compare after content changes. A checker that only says yes or no gives you little to act on.
Frase checker offers the best free first reading, while Otterly suits ongoing checking at low cost. Semrush and Ahrefs suit teams wanting checks inside a full SEO suite.
A checker gives one reading now, while a tracker watches the same prompts over time. Use a checker for a first look, then a tracker to see whether visibility changes after content updates.
Yes, Frase offers a free AI visibility checker for ChatGPT, with Perplexity and Gemini available with email. Other tools offer free trials for initial checks.
Free checkers cover single readings, while ongoing tools range from entry plans near 29 dollars a month to suite plans over 100 dollars a month. Per-check tools such as ZipTie suit occasional use.
Check prompts mirroring real customer questions about your product, category and competitors. High-intent prompts reveal visibility that matters, while generic brand prompts alone tell you little.