AI Search Visibility Tools in Japan (2026): LLMO, GEO and AIO Tools Compared

This is a Japan-focused English summary of our Japanese guide, which compares 27 domestic and 15 overseas tools. We publish AIOCROSS, one of the tools listed, so we have kept the comparison factual and based on each vendor’s public information. Prices are in Japanese yen (JPY) as listed in October 2026 and may have changed. Where a vendor does not publish a detail, we say so instead of guessing.

More people now look for services through ChatGPT and Gemini, so search rankings alone no longer tell you how easy you are to find. You also need to know whether AI answers mention your brand, how you compare with competitors, and which of your pages are cited. In Japan, these efforts are usually called LLMO (making content easier for AI to understand and cite), GEO (being chosen in generative AI answers) and AIO (appearing in Google AI Overviews). Tools for them differ widely in supported AI platforms, prompt limits, price and improvement features.

Quick picks by goal

Six things to compare

1. Supported AI platforms. Some tools cover ChatGPT but not Gemini or Google AI Overviews. Prioritize the AI your customers are likely to use, and check that each platform is measured under the same conditions.
2. SEO and AI search in one place. Tracking rankings and AI visibility in separate tools doubles the work.
3. Measurement volume. Limits differ by prompts, sites, brands, competitors, users and frequency. A plan with few competitor slots is hard to run if you want to track five or more.
4. Improvement features after measuring. Cited-page analysis, competitor gap analysis, improvement suggestions, outline generation, AI writing and reports.
5. MCP and API access. MCP lets an external AI use a service’s data and functions, but it is not always available on every plan. Check which plan includes it and whether it can run measurements or only read data.
6. Pricing and contract terms. Setup fees, free plans or trials, minimum contract periods, annual vs monthly billing, and the cost of extra prompts or AI platforms. For enterprise tools without public pricing, confirm volume and extra fees when you request a quote.

Japanese tools: what we found

All prices are in JPY per month. “Excl. tax” means the vendor lists the price without Japanese consumption tax.

Low-cost and individual-friendly

• AIOCROSS – A Windows tool that checks Google rankings and AI search visibility in one place (ChatGPT, Claude, Gemini, Google AI Overviews). Measured data can be passed to an external AI for competitor analysis and improvement ideas. Trial: 10 days free, 2 sites, no card registration. Light: 1,000 yen (incl. tax). Standard: 3,000 yen (incl. tax), up to 50 sites, 50 SEO phrases and 50 AIO phrases, with MCP support. Features include AI_WORKSPACE, external AI integration and cloud-synced reports.
• Junichi-kun – 500 yen (excl. tax). Fetches Google rankings, AI Overviews and ChatGPT results every three days. 50 keywords and 3 AI prompts, with a 14-day free trial. Multiple plans and MCP support are not clearly documented.
• Gyro-n SEO – An SEO tool that also shows whether Google AI Overviews appear and which pages they cite. Plans range from 500 yen (1 site, 10 keywords) to 16,800 yen (3 sites, 300 keywords), with a 3-month free trial and no minimum contract. AI coverage is mainly AI Overviews.
• Ritera (BringRitera) – An integrated SEO and LLMO platform covering AI mentions and citations, competitors, full answers, cited URLs, suggestions and content creation, plus Google Search Console. Free: 0 yen (1 site, 1,000 queries). Light: 450 yen. Standard: 2,700 yen (50 sites). Pro: 8,100 yen (200 sites). Enterprise: 27,000 yen (1,000 sites).
• Generative AI Mention Checker – A free, one-off checker that shows whether your company or competitors appear in answers from ChatGPT, Gemini and Google’s AI summaries.

Continuous AI mention monitoring

• AIOPulse – Asks ChatGPT, Gemini and Claude your registered keywords every day and tracks brand mentions, using natural prompts that do not include the brand name. 19,800 yen (excl. tax) including 5 keywords, plus 5,000 yen per extra keyword. 14-day free trial, no minimum contract.
• Answer IO – Saves AI answer logs and gives a visibility score for ChatGPT and Perplexity. Free account with 20 starting points, no card. Individual Pro: US$60. Business Pro: US$299.
• Mirror – Regular tracking of mention and citation rates in AI answers. The tool alone starts at 50,000 yen.

Mid-range platforms with improvement features

• LLMOinsight – Analyzes brand exposure, recommendation rank, cited sources and competitor gaps, with content generation. Free (6 questions), Standard 9,800 yen, Business 29,800 yen (BYOK supported).
• Optyino.ai – GEO platform for ChatGPT, Gemini, AI Overviews, AI Mode, Perplexity and Bing Copilot. Entry 5,990 yen (1 brand, 20 prompts) up to Pro 35,900 yen; MCP supported on its main plans. The free trial needs no card.
• Brand UP – Mention rate, citation rate and rank across ChatGPT, Gemini, Copilot, Claude, AI Overviews and AI Mode, with improvement suggestions and risk detection. Basic 7,980 yen, Pro 50,000 yen, Enterprise by quote.
• LLMO Check – Covers eight AI platforms with article creation, SNS posting, notifications and white-label options. From 29,800 yen (2 AI platforms) to 98,000 yen, with a white-label plan.
• DolphinX AIO – Light 30,000 yen (no MCP), Pro 50,000 yen and Business 100,000 yen (MCP supported).
• Genview – GEO diagnosis and site improvement. Base 60,000 yen (excl. tax) with 15 queries; extra queries 2,000 yen each; 14-day free period.
• SUPER ACT – 15,000 yen (excl. tax): 10 prompts, 2 brands, 5 team members, recommendation and sentiment measurement.

Enterprise and consulting-style services

• Mieruka GEO – Single site 49,800 yen (excl. tax), multiple sites 99,800 yen; AI share monitoring from 50,000 yen with 100+ prompts. Free trial available.
• AIsearchmap – Free plan (ChatGPT, 25 prompts, 1 brand) and Enterprise from 50,000 yen.
• QueryLift – Lite 40,000 yen (3 AI models, 20 prompts); Business 200,000 yen (6 models, 90 prompts, content improvement).
• AKARUMI, LLMOA, umoren.ai, Keywordmap – Pricing is by quote or not publicly listed.
• SEARCH WRITE – Public information shows 100,000 yen (tool) and 300,000 yen (strategy and execution support) per month.

Content-focused tools such as EmmaTools (SEO writing and quality checks, from 2,728 yen incl. tax) are better for producing SEO articles than for measuring brand mentions in AI answers.

Overseas tools and what to check

The Japanese guide also reviews 15 overseas services, including Profound, AthenaHQ, Otterly.AI, Ahrefs Brand Radar (AI Visibility Index from US$199), Semrush AI Visibility (US$99 per domain), Scrunch AI, GetCito (from US$599) and SE Ranking AI Search. They are strong at large-scale analysis. For a Japan-based business, check:

• Whether you can pay in Japanese yen or by invoice.
• Whether you are applying overseas search results directly to a Japanese market strategy.

For small domestic sites, overseas tools can be more than you need in both features and price. To start AI search work in Japan, compare domestic services, including their free trials, alongside the overseas ones. For a closer comparison of AIOCROSS with overseas services, see How to Choose an AI Search Visibility Tool: AIOCROSS vs Overseas Services.

A note on reading results

AI answers change with the prompt, region, language and timing. Figures from different tools are not directly comparable side by side. Before you commit, test each tool with your own prompts and your target AI platforms.

See AIOCROSS pricing and features on the official site

Japanese version: 【2026年版】LLMO・GEO・AIO対策ツール国内27選・海外15選