LLM Gap Analyzer Semrush App CenterThe AI visibility category splits into two jobs. Trackers — Profound, Otterly, SE Visible, and others — monitor whether your brand appears in AI answers over time: the scoreboard. Fixers — LLM Gap Analyzer's category — dissect why a specific answer chose its sources and hand you the content changes to become one: the repair manual. They're complementary, not substitutes. If you don't know whether you have a problem yet, start with tracking. If you already know which keywords you're losing, start with fixing.
Disclosure: I built LLM Gap Analyzer, so read this as a founder's map, not a neutral review. I've tried to keep it honest enough that a Profound customer would nod along — including the section on when you shouldn't buy my tool.
The two jobs, and why one tool rarely does both
Tracking is a breadth problem: run thousands of prompts across engines on a schedule, aggregate mentions, chart share of voice against competitors. It rewards scale, scheduling, and dashboards.
Fixing is a depth problem: take one live answer and reconstruct it — which source powered which segment, which claims are well-grounded and which are standing on a stale 2024 blog post, what your article specifically lacks, and what sentence, placed where, changes the outcome. It rewards forensic resolution, which is expensive per query and pointless to run on a nightly schedule.
Different economics, different outputs, different buyers' moments. Which is why the market keeps producing both — and why "GEO tool" comparisons that rank them on one axis confuse people.
The map
| Profound | Otterly | SE Visible | LLM Gap Analyzer | |
|---|---|---|---|---|
| Job | Enterprise AI share-of-voice & brand monitoring | AI search monitoring for SMB/mid-market | AI visibility tracking in the SE Ranking suite | Per-answer forensics + per-article fixes |
| Scheduled tracking across many prompts | Yes — core strength | Yes | Yes | No — on-demand, per keyword/prompt |
| Share-of-voice dashboards | Yes | Yes | Yes | No |
| Explains why a source was chosen (reasoning per answer) | Limited | Limited | Limited | Yes — 6-layer Answer Breakdown |
| Grades claims in the answer (weak / unsourced) | No | No | No | Yes — Claim Analysis |
| Sentence-level fixes for your article | No | No | No | Yes — location + ready-to-paste content + competitor you'll replace |
| Engines | Multiple AI platforms | Multiple AI platforms | Multiple AI platforms | Google AI Overviews + ChatGPT (Gemini, Claude soon) |
| Entry price | Enterprise-oriented; higher tiers | From ~$39/mo | Add-on within SE Ranking plans | $49/mo flat · 7-day trial · unlimited $59/mo |
Competitor details reflect public information as of July 2026 — verify current pricing and features on their sites.
One keyword through both tool types: "best crm for startups"
The clearest way to see the split is to run the same losing keyword through each tool class and compare what comes back. (Sample outputs, representative of each class.)
FIXER → "Competitor A grounds 3 of 6 claims; its March 2026 pricing table won the framing slot. Weakest claim in the answer: 'all startup CRMs include free migration' (unsourced — actually 4 of 9 vendors). Your page lacks a migration-cost passage entirely. Location: after H2 #3. Suggested content drafted. Article you'll replace: competitor A's pricing post."the why + the where + the fix
When you should NOT buy LLM Gap Analyzer
Sales pages never include this section, which is exactly why this one does:
- You need continuous monitoring across hundreds of prompts. That's a tracker's job. Buy Profound (enterprise), Otterly (SMB), or SE Visible (if you're already in SE Ranking) — and come back when the dashboard shows you what's broken.
- You have no content team. Our output is editing instructions. If nobody will ship the edits, the analysis is a very detailed description of a problem you won't fix.
- Your keywords don't trigger AI answers. Some niches still see few AI Overviews. Check first; don't buy a repair manual for a machine you don't own.
How teams run both (the sane stack)
- Tracker finds the bleeding. Weekly dashboard: which prompts/keywords mention competitors but not you, where share of voice is slipping.
- Fixer performs the surgery. The 5–10 worst losses go through LLM Gap Analyzer: source reasoning, weakest claims, gap list, ready-to-paste fixes — the full gap-analysis workflow.
- Tracker verifies the recovery. Citations flip in days-to-weeks after recrawl; the dashboard turns your edits into a before/after chart leadership understands.
Total stack cost for an SMB running Otterly + LLM Gap Analyzer: under $90/month — less than one hour of the consultant who'd tell you the same thing quarterly.
Seven questions that expose any AI-visibility vendor in one demo call
Category marketing has converged ("GEO platform," "AI SEO"), so the tools sound identical until you ask questions the dashboards can't deflect. Take these to every demo — including ours:
- "Show me WHY this specific answer cited this specific source." Trackers show that it happened; only per-answer reasoning shows why. If the answer is a correlation chart, you're looking at a tracker.
- "Which claim in this answer is weakest, and how do you know?" Claim-level grading either exists in the product or it doesn't. This single question separates the categories in ten seconds.
- "What exactly do I change on my page — show me the sentence and the location." "Improve topical authority" is not an answer a writer can ship Tuesday.
- "Is this data live or cached, and from which surface?" Overviews regenerate; cached SERPs age in days. Also confirm which surfaces are covered — AI Overviews and AI Mode citations overlap far less than vendors imply.
- "What's the per-query cost at my real usage?" Per-prompt-per-engine-per-day pricing multiplies quietly. Get the number for your keyword count.
- "Show me a before/after where a customer's content change flipped a citation." The honest answers are revealing in both categories: trackers measure it, fixers cause it, and vendors with neither change the subject.
- "What should I NOT use you for?" Every honest vendor has a crisp answer. (Ours is at the top of this page.)
Scoring guide: questions 1–3 test whether it can fix; 4–6 test whether the tracking is trustworthy; 7 tests whether the vendor is. A tool that passes 1–3 but not 4–6 is a fixer (that's us — we told you the tracking limits above). A tool that passes 4–6 but not 1–3 is a tracker. A tool claiming all seven deserves your hardest follow-ups.
Go deeper: what "why this source" mechanically means → the selection pipeline. What claim-grading finds in the wild → the study. The workflow a fixer should enable end-to-end → gap analysis, step by step.
Already know which keywords you're losing?
Then you're past the tracking stage. Run those keywords through the Google AI Gap Analyzer and get the why and the fix. 7-day free trial in the Semrush App Center.
Analyze my lost keywordsFrequently asked questions
What is the best AI visibility tool?
What is GEO (Generative Engine Optimization)?
What does Profound do?
What is a good Otterly alternative?
How much do AI visibility tools cost?
What's the difference between AI visibility tracking and rank tracking?
Do I actually need an AI SEO tool?
Can LLM Gap Analyzer replace Profound or Otterly?
Is Semrush building its own AI visibility features?
What should I look for when choosing an AI visibility tool?
Can I use LLM Gap Analyzer as a lightweight tracker?
Which AI engines do these tools cover?
How do I measure ROI from AI visibility tools?
Dmitry Dragilev
4× acquired founder: Polar Polls → Google (2014), JustReachOut → SEOJet (2020), Smallbiz.Tools → Semrush (2023), SERP Gap Analyzer — the #1 top-performing app in the Semrush App Center → Semrush (2025). Contributor to Forbes, TechCrunch, WIRED, and Moz since 2009. More at criminallyprolific.com.