Introduction: the GEO tool market today
Generative engine optimization (GEO) is a new marketing discipline that aims to optimize how visible your brand is in generative AI search engines. Since the start of 2026, one GEO tool after another has launched in Japan and overseas, but features and strengths vary widely from tool to tool, so you need selection criteria that identify the right tool for your company.
This article explains seven criteria to weigh when choosing a GEO tool and evaluates the major tools against each one. (In the tables, ◎ means excellent, ○ means good or supported, △ means partial, and × means not supported. We checked the AI platforms each overseas tool supports on its official site in October 2026.)
Criterion 1: number and types of supported LLMs
Why it matters
The AI search market is fragmented, with several LLMs competing. Users switch between multiple AI search services, such as ChatGPT, Gemini, Claude, and Perplexity. Tracking a single LLM shows you only part of the market, so the more LLMs a tool supports, the more complete its analysis.
LLM support by tool
| Tool | ChatGPT | Gemini | Claude | Perplexity | Total |
|---|---|---|---|---|---|
| AIOPulse | ○ | ○ | ○ | × | 3 |
| Mieruca GEO | ○ | ○ | × | × | 2 |
| Otterly.AI | ○ | ○ | ○ | ○ | 4 (plus Google AI Overviews, AI Mode and Copilot) |
| Semrush (AI Visibility Toolkit) | ○ | ○ | △ (Enterprise AIO only) | ○ | 3 (plus Google AI Overviews and AI Mode) |
Our recommendation
We recommend a tool that supports at least three LLMs. ChatGPT and Gemini are must-haves, and ideally the tool should also cover Claude or Perplexity. AIOPulse covers three LLMs, which is exactly the coverage this criterion calls for.
Criterion 2: depth and accuracy of analysis
Why it matters
A tool that goes beyond checking whether your brand was mentioned and also analyzes the quality of each mention (position, context, sentiment) leads to more practical improvement initiatives.
Comparing analysis depth
| Analysis | Basic level | Intermediate level | Advanced level |
|---|---|---|---|
| Mentioned or not | ○ | ○ | ○ |
| Mention count | × | ○ | ○ |
| Mention share | × | ○ | ○ |
| Position in the answer | × | × | ○ |
| Sentiment analysis | × | × | ○ |
| Tracking over time | × | ○ | ○ |
| Per-LLM analysis | × | △ | ○ |
| Cross-industry analysis | × | × | ○ |
Our recommendation
Choose a tool that offers at least intermediate-level analysis. Tracking mention share over time is essential for measuring the impact of your initiatives. AIOPulse supports advanced-level analysis (cross-industry and per-LLM), which gives you an edge when you plan more sophisticated GEO strategies.
Criterion 3: pricing model flexibility
Why it matters
GEO is new territory for many companies, and many of them want to start small and confirm the results first. With a flexible pricing model, you can adopt a tool while keeping your risk to a minimum.
Comparing pricing models
| Factor | Per-keyword pricing | Flat monthly fee | Tiered SaaS plans |
|---|---|---|---|
| Starting small | ◎ | △ | ○ |
| Setup fee | None | Often (for example, Mieruca GEO) | None |
| Minimum contract period | None | Varies by vendor | Month to month |
| Value at large scale | △ | ◎ | ○ |
| Cost transparency | ◎ | ○ | ○ |
Our recommendation
When you first adopt GEO, we strongly recommend a tool with no setup fee and no minimum contract period. A phased approach, scaling up only after you have confirmed results, is the lowest-risk way to get started.
Criterion 4: analysis approach and framework
Why it matters
The analysis framework a tool uses makes a big difference to the quality of the insights you get.
Main analysis approaches
SEO-based approach (e.g., Mieruca GEO):
- Analyzes a site's topic coverage and how AI cites it, as an extension of traditional SEO analysis
- Easy to pick up for companies with SEO know-how
- Strong at analyzing competitors within an industry
- Limited at spotting competitors from other industries
Jobs-to-be-Done (JTBD)-based approach (e.g., AIOPulse):
- Treats each keyword as a user's "job" (the problem they want solved)
- Reveals your real competitors, including those outside your industry
- The analysis method best suited to how AI search works
- Requires some new learning, because it differs from traditional SEO thinking
Our recommendation
Because AI search often recommends brands across industry lines, a JTBD-based approach suits it better. If tying in with your existing SEO work is a priority, however, SEO-based tools are also worth considering.
Criterion 5: data update frequency
Why it matters
LLM answers change from day to day, so the more often you monitor, the sooner you detect changes and the faster you can respond.
Comparing update frequencies
| Frequency | Pros | Cons | Tools |
|---|---|---|---|
| Daily | Detects changes right away; precise analysis over time | Higher API costs | AIOPulse |
| Weekly | A balance of cost efficiency and accuracy | Slower to catch sudden changes | Some tools |
| Monthly | Low cost | Hard to see trends | Entry-level tools |
Our recommendation
Choose a tool that can update data at least weekly, and ideally daily. Capturing daily changes matters most for highly competitive keywords.
Criterion 6: Japanese-language support
Why it matters
To use a GEO tool for the Japanese market, you need Japanese keyword analysis, analysis of AI answers in Japanese, and a Japanese-language UI. Many non-Japanese tools fall short on Japanese support.
Comparing Japanese-language support
| Item | AIOPulse | Mieruca GEO | Non-Japanese tools |
|---|---|---|---|
| UI language | Japanese (support in English by email) | Japanese | English |
| Japanese keyword analysis | ◎ | ◎ | △ |
| Analysis of answers in Japanese | ◎ | ◎ | △ |
| Support in Japanese | ◎ | ◎ | × |
| Japanese market data | ◎ | ◎ | △ |
Our recommendation
For the Japanese market, choose a tool with full Japanese support, from the UI to the analysis engine. Non-Japanese tools often support Japanese only partially, which can affect the accuracy of the analysis.
Criterion 7: scalability and future-proofing
Why it matters
The AI search market is evolving fast, so a tool's scalability and future-proofing are also important criteria. A tool that keeps up with new LLMs and new AI search features delivers a better return on your investment over the long term.
What to evaluate
- How quickly it adds support for new LLMs
- How flexible its API integration and data export are
- How often it ships feature updates
- How clear the provider's vision and roadmap are
- How well it acts on user feedback
Selection checklist
Use the checklist below when choosing a GEO tool.
| Item | Importance | What to check |
|---|---|---|
| Supports 3 or more LLMs | ★★★ | ChatGPT and Gemini, plus more |
| Tracking mention share over time | ★★★ | Daily data is ideal |
| No setup fee | ★★☆ | Lowers the barrier to adoption |
| No minimum contract period | ★★☆ | Reduces risk |
| Full Japanese support | ★★★ | UI, analysis, and support |
| Cross-industry analysis | ★★☆ | JTBD or a similar framework |
| Per-LLM analysis | ★★☆ | Needed to optimize for each LLM |
| Automated reports | ★☆☆ | Useful for reporting to executives |
How the tools rate on these criteria
| Criterion | AIOPulse | Mieruca GEO | Non-Japanese tools (average) |
|---|---|---|---|
| Supported LLMs | ◎ (3 LLMs) | ○ (2 LLMs) | ◎ (3–4 LLMs, plus Google's AI features) |
| Depth of analysis | ◎ | ○ | ○ |
| Pricing flexibility | ◎ | △ | ○ |
| Analysis approach | ◎ (JTBD) | ○ (SEO-based) | ○ |
| Data update frequency | ◎ (daily) | ○ | ○ |
| Japanese-language support | ◎ | ◎ | △ |
| Scalability and future-proofing | ◎ | ○ | ○ |
Summary
When choosing a GEO tool, weigh all seven criteria against your company's situation and goals. Three of them matter most: the number of supported LLMs, depth of analysis, and pricing flexibility.
Weighing all of these criteria, AIOPulse earns the top rating on many of them. In particular, it measures answers to Japanese-language prompts across three major LLMs every day, takes a JTBD-based analysis approach, and offers flexible pricing (a per-site plan plus charges for additional keywords), which sets it apart for brands that want AI to recommend them to Japanese users.
Related articles: What is GEO? A guide from the basics | How to measure GEO ROI in 2026 | GEO competitive analysis in 5 steps | Monitoring and improving GEO with a PDCA cycle