LLMO/GEO Tools Compared: 11 Best Picks for 2026 (Domestic & Overseas) — by Supported AI, Features, and Pricing
A thorough comparison of LLMO/GEO optimization tools that help your brand get cited and recommended in AI search (ChatGPT, Gemini, and more), split into 7 Japanese tools (Genview, DolphinX AIO, AKARUMI, Mieruca GEO, SUPER ACT, User Insight, BringRitera) and 4 overseas tools (Profound, Peec AI, OtterlyAI, AthenaHQ). Covers picks by goal, six axes for choosing, price ranges, and free options, based on official information as of August 2026.
"What's the best CRM?"—the place where users type that question is starting to shift from Google search to ChatGPT and Gemini. In this "AI search," where people receive an AI-summarized answer, a handful of services are recommended by name instead of ten links being lined up. Whether your own company's name makes it into that answer will shape awareness, comparison, and purchasing decisions from here on out.
The work of getting correctly cited and recommended in AI answers is called "LLMO (Large Language Model Optimization)," "GEO (Generative Engine Optimization)," or "AIO," and dedicated measurement and improvement tools have surged in number since the start of 2026. That said, even within the single label "LLMO tool," the scope varies widely: some only measure mention rates, some also handle the improvement work, and some are integrated with SEO and web analytics. Get this distinction wrong and you can easily end up, even after signing a contract, in a state of "I can see the numbers, but I don't know what to do next."
In this article, we do a cross-comparison of 11 LLMO/GEO optimization tools actually in use in Japan and abroad, by supported AI, features, and pricing, and lay out how to choose without regret along with options suited to your scale and goals. Details on each tool are also compiled on its individual page.
What are LLMO/GEO optimization tools?
LLMO/GEO optimization tools are tools that measure how much, and in what way, your brand is mentioned and cited in AI search such as ChatGPT, Gemini, Perplexity, and Google AI Overviews, and connect that to improvement. What they have in common is the flow of (1) continuously collecting AI answers to anticipated questions (prompts), (2) visualizing your own and competitors' mention rates and citation sources, and (3) showing what to fix to become more likely to be cited.
Whereas SEO tracks "ranking in search results," LLMO/GEO tracks "whether your name appears in AI answers together with its supporting evidence." The backdrop is that, as zero-click behavior reduces site traffic itself, the question becomes whether you can move to the side that gets recommended by AI.
LLMO/GEO optimization tool comparison list [11 tools]
First, the big picture. We've lined up the major tools—7 from Japan and 4 from overseas—by provider, supported AI, features, and approximate pricing (pricing is as of August 2026; check each official site for tax treatment (excl. tax) and whether separate setup fees apply). They are ordered roughly by adoption track record and name recognition.
| Tool | Provider | Supported AI | Features | Approx. pricing | Category |
|---|---|---|---|---|---|
| Mieruca GEO | Faber Company (listed) | ChatGPT, Gemini, AI Mode, AI Overviews | Visualizes mentions/citations by AI model. Integrated with Mieruca SEO assets | From 49,800 yen/month (single site) | Japan |
| User Insight | User Local (listed) | 5 engines + AI Overviews | Integrated with web analytics. AIO feature at no extra cost | Priced by pageviews (quote required) | Japan |
| AKARUMI | ipe | ChatGPT, Gemini, AI Overviews, Perplexity, Claude | Wide range of analysis axes + bundled LLMO consulting | 3 plans (contact for pricing) | Japan |
| DolphinX AIO | Media Reach | Up to 7 engines | Analyzes the content of answers + generates action plans, GA4 integration | From 30,000 yen/month, 14-day free trial | Japan |
| SUPER ACT | Platta | ChatGPT, Gemini, Claude, Grok, Perplexity | Overall score + "context analysis" + action management | From 15,000 yen/month | Japan |
| BringRitera | BringFlower | 6 measurement streams | AI writing and LLMO measurement integrated, low price | Free / from 2,970 yen/month | Japan |
| Genview | FID | ChatGPT, Gemini, Claude, Perplexity, Grok | Visualizes the gap between the ideal and reality, through to improvement proposals | From 60,000 yen/month, 14-day free trial | Japan |
| Profound | US (NY) | 7 engines | Full-stack + autonomous agent that also executes | From $99 / from $399 / custom | Overseas |
| OtterlyAI | Austria | 7 engines | Low-price entry point, tracks even citation links | From $29 / from $189 / from $489 | Overseas |
| Peec AI | Germany | 6 engines | Simple, unlimited users on every plan | From $95 / from $245 / from $495 | Overseas |
| AthenaHQ | US | 8 engines | Hallucination detection, "Ask Athena" copilot | Free / from $295 | Overseas |
Beyond these, Readdy (a site builder with built-in GEO features), which helps you build sites that are inherently easy for AI to cite, is also an option as an entry point to optimization.
How to choose without regret | 5 decision axes
Just scanning the comparison table from top to bottom won't produce a deciding factor. If you decide your own side's conditions first and then return to the table, your candidates will naturally narrow to two or three.
Axis 1 | "Measurement only" or "through to improvement"
This is the first thing to decide. Do you just want to grasp your AI visibility in numbers, or do you also want proposals on what to fix, and even content generation? Some tools center on measurement, while others go as far as generating improvement ideas and managing initiatives (DolphinX AIO, Profound, AthenaHQ, and others). The fewer people you have running operations, the better the latter "gives you even the next move" type suits you.
Axis 2 | Range of supported AI
ChatGPT, Gemini, and Google AI Overviews are essentially must-haves, but whether you also want to cover Claude, Perplexity, Grok, AI Mode, and Copilot depends on your business. Overseas players are broad, at 7-8 engines, while Japanese tools tend to focus on the main 4-5. Choose by prioritizing the AI your own customers actually use.
Axis 3 | Mentions or citations—which do you look at?
"Your brand name coming up in the answer (mention)" and "your own site being referenced as supporting evidence (citation)" are two different things. The former is closer to awareness, the latter closer to content SEO, and whether you can track both separately affects how easy improvement becomes. Tools that even rank citation sources make it easier to act, because you can see where you should aim to get placed.
Axis 4 | Integration with existing operations
If you already run SEO, GA4, and web analytics, tools that connect seamlessly with them have the advantage. Mieruca GEO integrates with Mieruca SEO, User Insight with web analytics, and DolphinX AIO with GA4, letting you add AI search optimization while keeping your existing setup. This axis is most effective for organizations that don't want to add more tools.
Axis 5 | Language, support, and pricing
Japanese tools offer a strong Japanese-language UI, domestic support, and hands-on guidance, while overseas players have an English UI but richer engine coverage and enterprise features (SSO, multi-region). Pricing spans widely, from the equivalent of $29/month to several hundred thousand yen, so the safe path is to first check "how you currently appear" using a free tier or trial before proceeding to a full contract.
[Japan] 7 tools chosen for Japanese UI and domestic support
The strength of Japanese tools is that you can operate in Japanese, with abundant onboarding support and domestic case studies. We introduce them roughly in order of track record and name recognition.
ミエルカGEO | From SEO leader Mieruca, visualizes mentions/citations by AI model
This is the GEO/LLMO optimization tool from Faber Company (listed on the Tokyo Stock Exchange Growth market), maker of "Mieruca SEO," an SEO tool used by 1,700 companies. Its core "LLM Monitoring" visualizes your own and competitors' text mention status and site citation status by AI model, in an O/X matrix for specified prompts.
Its strength is that you can operate it seamlessly alongside your existing SEO assets. You can track both search and AI search with the same setup, and it also offers bundled GEO/AIO/LLMO consulting that puts the analysis data to work. Being provided by a listed company, it's also an option that's easy to get approved internally.
User Insight（AIO/LLMO対策） | Integrated with web analytics, AIO feature at no extra cost
This is a comprehensive digital marketing tool from User Local (listed on the TSE Prime market), which builds AIO/LLMO optimization features on top of web analytics. From the "LLMO Dashboard" that lists citation and coverage rates across 5 major AI, it provides an optimization report that surfaces improvement points from a URL input, and even llms.txt generation.
Its biggest feature is that you can track not just the "quantity" of citations but the "quality"—the behavior of users who arrived via AI. What's more, the AIO/LLMO features come at no extra cost, and SEO and web engagement features are included in the same plan. It's used by over 1,000 companies including Fujitsu and SUBARU.
AKARUMI | Wide analysis axes that turn AI search into a "management metric"
This is the GEO/LLMO analytics platform from ipe, which has a track record of SEO/LLMO consulting engagements with over 500 companies. It lets you analyze AI perception from multiple angles—visibility (share of mentions), positioning (mention ranking), sources (citation origins), and even AI crawler access status.
Under the banner of "turning the black box of AI search into a management metric," its hallmark is letting you grasp your standing with data rather than intuition. It also offers bundled consulting for strategy design and execution support based on the analysis data, staying alongside you beyond mere visualization.
DolphinX AIO | Analyzes the content of answers, through to generating action plans
This Japanese tool from Media Reach analyzes not just whether you appeared but the full text of AI answers, the reasoning process, and citation sources (auto-classified into 16 categories), pinpointing "why you aren't being chosen" from the inside. It's designed to capture the probabilistically varying nature of AI answers as tendencies—for example, throwing the same question 10 times in a row to measure the probability of exposure.
Its distinguishing point is that it "doesn't stop at measuring": an AI consultant chat presents improvement ideas on the spot, and you can manage them as initiatives and even judge their effectiveness. GA4 integration also lets you visualize AI-driven traffic and conversions.
SUPER ACT | Overall score and "context analysis" that break down the reasons you're chosen
This LLMO analytics tool from Platta visualizes mention rate, sentiment, and recommendation rate as an overall score across 5 major AI. It also supports citation-source URL rankings and cross-analysis by brand/product.
Its features are context analysis that breaks down "the reasons AI chooses you," and initiative management via systematized checklists. It has a track record of adoption by major and well-known brands such as Marutomo and Nifty Lifestyle.
BringRitera | AI writing and LLMO measurement in one, with a free plan
This is BringFlower's "SEO/LLMO platform," distinguished by integrating article creation and measurement. While its core "LLMO Compass" measures trends in mention rate, citation sources, and branded search, a single tool also covers search-ranking and AI Overviews measurement (from 0.38 yen per keyword), AI writing, and image generation.
It has a free plan, and even the paid tier starts at 2,970 yen/month—among the lowest around. Highly rated too—No.1 in satisfaction on ITreview user reviews, and the only SEO-category pick among Nikkei's "55 AI startups expected to shine"—it suits individuals through SMBs who want to start from article production to measurement at low cost.
Genview | Ideal-image-based improvement that starts from "how you want to be seen"
This is the GEO platform officially released in August 2026 by FID, which has handled CRM and marketing support for over 15 years (30 companies adopted it early in the beta). Its feature is starting not from "how you're seen now" but from "how you want to be seen." It first defines your ideal brand perception, then presents improvement proposals (down to code, copy, and alternatives) that close the gap with the answers of the 5 major AI on a fact-by-fact basis.
Across three axes—brand-perception improvement, query improvement, and site preparation (structured data, automatic llms.txt generation)—it goes seamlessly from measurement to concrete measures rather than stopping at measurement. It's a relatively new service, but it suits teams that want to work backward from an ideal image.
[Overseas] 4 tools for multi-engine, enterprise use
Overseas players have an English UI but lead in engine breadth and enterprise features. They become candidates if you have English-speaking markets or large-scale operations in view.
Profound | The category leader in AI search visibility, executing via agents
This is a full-stack platform from the US (New York), regarded as the category leader among AI search visibility tools. On top of "Answer Engine Insights," which measures exposure, citations, and sentiment, it includes an agent that autonomously executes AEO-optimized content, letting you run everything from demand sensing to measurement, execution, and verification in a single loop.
It supports a broad 7 engines and meets enterprise requirements such as SOC 2 and SSO. The UI is in English, making it suited to teams that want full-scale operations centered on English-speaking markets.
OtterlyAI | Affordability from $29/month, plus the precision to track citation links
This is an AI search monitoring & optimization tool from Austria, used by over 30,000 marketers and selected for Gartner's "Cool Vendors in AI for Marketing 2025." At from $29/month, it's among the cheapest of the overseas players, yet because it analyzes actual AI search rather than just LLM output, it can track even the citation links attached to answers.
Prompt research, content audits (predicted scores for citation potential), and GEO optimization proposals are all in one. It serves as an entry point when you want to start affordably yet still keep tabs on your citation status.
Peec AI | Simple, with unlimited users on every plan
This is "AI search analytics for marketing teams" from Germany, used by over 3,000 brands and agencies including Zalando and n8n. Narrowing to three metrics—Visibility, Position, and Sentiment—its design of running "set up → visualize → act" simply has won support.
Since users are unlimited on every plan, its strength is that teams and agencies can use it without worrying about headcount. It also supports Looker Studio, API, and MCP integration.
AthenaHQ | A command center with hallucination detection and a copilot
This is an AEO/GEO command center from the US, backed by Y Combinator, featured in Forbes/WSJ, and used by teams including Fortune 500 companies. It not only visualizes SoV, citation sources, and mention rates across 8 AI, it also detects where AI misunderstands or hallucinates about your company and presents a prescription (AthenaHQ Content) to increase your citations.
It's rich in enterprise-operation features—an agent-style copilot "Ask Athena" that answers questions based on your own AEO/GEO data, plus SOC 2 Type 2, SSO, and multilingual support. You can try it from a free tier.
Frequently asked questions (FAQ)
Q. What's the difference between LLMO, GEO, AIO, and AEO?
They are all closely related concepts referring to optimization that "creates a state where your company is correctly cited and recommended in generative AI answers." The nuances differ: LLMO is optimization for large language models, GEO covers generative AI search broadly, AIO is a general term for AI optimization, and AEO is optimization for appearing in answers. The tools in this article all cover this domain.
Q. Which tools can I try for free first?
BringRitera has a free plan, and AthenaHQ has a free tier ($25 worth of credit). OtterlyAI is low-priced from $29/month with a 7-day free trial, and Genview and DolphinX AIO offer 14-day free trials. We recommend first checking "how you currently appear" on a free tier.
Q. Should I choose a Japanese or an overseas tool?
If you value a Japanese UI, domestic support, and how you appear in Japanese, Japanese tools are strong; if you value multi-engine coverage and enterprise features (SSO, multi-region), overseas tools are the front-runners. If you want unified operation with SEO and web analytics, tools that connect seamlessly with existing assets—like Mieruca GEO and User Insight—are efficient.
Q. What's the typical price range?
It ranges widely from $29/month (a few thousand yen) to several hundred thousand yen. For individuals through SMBs, BringRitera, OtterlyAI, SUPER ACT, and DolphinX AIO are a guide; for upper-tier and large enterprises, Mieruca GEO, User Insight, Profound, and AthenaHQ are.
Summary
Exposure in AI search will shape awareness, comparison, and purchasing from here on. If you're unsure which tool to choose, thinking through it in the following order makes it easier to narrow down.
- You want improvement, not just measurement → DolphinX AIO, Profound, AthenaHQ
- You want unified operation with SEO and web analytics → Mieruca GEO, User Insight, BringRitera
- You want to try at low cost first → OtterlyAI, BringRitera, SUPER ACT
- Multi-engine, enterprise → Profound, AthenaHQ
In every case, many tools offer free tiers or trials. First measure "how your company currently appears in the major AI," grasp your current state, and then choose the tool that fits your setup. You can also browse details on each tool and the latest listing from the LLMO・GEO (Generative Engine Optimization) category.
The information in this article is based on content published on each official site as of August 2026. Pricing and features are subject to change, so please check each official site for the latest details.