GEO (Generative Engine Optimization)

GEO (Generative Engine Optimization) is a method of optimizing content and communications so that your site or brand is cited as evidence and recommended by "generative engines" — AI search experiences such as ChatGPT, Perplexity, Google AI Overviews, and AI Mode that generate an answer text in response to a question. It is also translated as "generative AI search optimization" or "AI search optimization," and covers roughly the same ground as the term "LLMO" used in Japan. How it works: The term GEO was proposed in the 2023 paper "GEO: Generative Engine Optimization" by a research team including Princeton University. A generative engine reads several pages gathered by search, condenses the key points into a single answer, and attaches a few links as evidence. The paper reports that writing styles such as stating statistics, citing sources, and quoting experts increase visibility within the answer. In other words, whereas traditional SEO focuses on collecting links, GEO emphasizes "writing that is easy for AI to summarize and easy to draw on as evidence." In practice: A page that ranks high in SEO is not necessarily cited in AI search. So the usual sequence is: (1) find out which pages are being cited for the expected questions, (2) restructure your own pages with conclusion first, comparison tables, FAQs, and primary information, (3) make them easy for AI crawlers to read via structured data and llms.txt, and (4) increase placements on external media that tend to be cited. Results are measured by mention rate and share of citations (AI visibility). Related tools: Many overseas tools such as Profound, Peec AI, OtterlyAI, and AthenaHQ position themselves as "GEO" or "AEO" tools, and Japanese products Genview and Mieruca GEO include it in their names. There are also tools on the production side, such as Writesonic and Readdy, that create content or sites in a form AI is more likely to cite.

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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), by supported AI, feature type, pricing (monthly / annual), and free tiers. Includes a 13-tool comparison table (adding the GEO-ready production tools Writesonic and Readdy), a three-line verdict, picks by goal, six axes for choosing, price ranges, free options, and an FAQ on LLMO vs. GEO and the metrics for measuring results — based on official listings as of August 18, 2026.

Related services

プロファウンド

Profound

Profound is a US-based, full-stack AI marketing platform that measures how a brand is mentioned and recommended across AI search — ChatGPT, Perplexity, Gemini, Google AI Overviews, and more — and drives improvement end to end. Widely regarded as the category leader in AI-search visibility, it offers Answer Engine Insights (Visibility Score, share of voice/rank, citations, brand sentiment, and FactCheck), Prompt Volumes (what millions of people ask AI), Agents (autonomous workers that generate AEO-optimized content and more), and Agent Analytics (how your site is crawled and interpreted by AI). It covers nine engines (varies by plan): ChatGPT, Perplexity, Gemini, Grok, Microsoft Copilot, DeepSeek, Google AI Mode, Claude, and Google AI Overviews. Pricing is Starter $99/mo, Growth $399/mo, and custom Enterprise (English UI).

# LLMO・GEO（生成AI検索最適化）# マーケティング# AIエージェント# 生成AI（LLM）# 業務効率化

ピーク エーアイ

Peec AI

Peec AI is a Germany-based "AI search analytics for marketing teams." Across AI search such as ChatGPT, Gemini, Perplexity, Google AI Overviews, AI Mode, and Microsoft Copilot, it measures — once a day per prompt — how often your brand is mentioned (Visibility), where it sits within answers (Position), and how it is described (Sentiment). Beyond brand mentions, it tracks the sources AIs cite at the domain/URL level and suggests concrete actions (G2, LinkedIn, Reddit, digital PR). It supports competitor comparison, segmentation by model/country/tag, and integrations via Looker Studio, REST API, and MCP (Claude and more). All plans include unlimited users. Pricing is Starter $95, Pro $245, Advanced $495, and custom Enterprise (English UI). Used by 3,000+ brands and agencies; 4.9/5 on G2.

# LLMO・GEO（生成AI検索最適化）# マーケティング# 生成AI（LLM）# 業務効率化# データ連携（API連携）

オッタリーエーアイ

OtterlyAI

OtterlyAI is a content-intelligence / AI-search monitoring platform from Austria that monitors how your brand shows up on AI search and helps you optimize it. Across ChatGPT, Google AI Overviews, AI Mode, Gemini, Perplexity, Microsoft Copilot, and Claude, it measures whether your brand is mentioned and your site is cited (Brand Coverage, Brand Mentions, Average Brand Position, Share of AI Voice, Sentiment). Because it analyzes real AI search rather than just LLM output, it can track citation links too. It also covers prompt research, content audits (a predictive score for crawlability, AI-readiness, and citation potential), and GEO optimization recommendations, with API, MCP, and Looker Studio integrations. Pricing starts at $29/mo (Lite), with unlimited team members on all plans and a 7-day free trial. Used by 30,000+ marketers and named a Gartner Cool Vendor.

# LLMO・GEO（生成AI検索最適化）# マーケティング# 生成AI（LLM）# 業務効率化# 生産性向上

アテナHQ

AthenaHQ

AthenaHQ is a US-based AEO/GEO (AI search optimization) command center for becoming the brand AI trusts. Across eight AIs — ChatGPT, Perplexity, Gemini, Google AI Overviews, AI Mode, Claude, Copilot, and Grok — it visualizes how your brand is mentioned and cited (Share of Voice, cited sources, mention rate). It detects where AI misunderstands or hallucinates about you, and includes AthenaHQ Content, a recommendation engine that pinpoints on-page/off-page fixes to earn more citations, plus Ask Athena, an agentic copilot that answers questions grounded in your own AEO/GEO data. It integrates with GA4, Google Search Console, and Shopify, and offers enterprise readiness such as SOC 2 Type 2 and SSO. Pricing is credit-based: Essential (free), Starter $295/mo, and custom Enterprise (1 credit = 1 AI response, 17% off annually). Featured on Forbes, WSJ, and Y Combinator.

# LLMO・GEO（生成AI検索最適化）# マーケティング# AIエージェント# 生成AI（LLM）# 業務効率化

ジェンビュー

Genview

Genview is a GEO (generative AI search optimization) platform built to help your brand be understood correctly and chosen by generative AI such as ChatGPT and Gemini. Whether your name comes up in answers to questions like "What's a good ~ ?" affects every stage of the buying journey, from awareness and consideration to purchase and word of mouth. Genview makes visible the gap between the ideal brand image you want to convey and what generative AI actually says, working end-to-end from measurement and diagnosis through to improvement proposals across three perspectives: brand perception, mentions and citations for important queries, and your whole website (structured data, llms.txt, and more). It goes beyond mere measurement to present concrete actions for improvement. Genview is operated by FID, Inc. (Shinjuku, Tokyo), which has provided CRM and marketing support for more than 15 years, and was officially released on August 1, 2026, with 30 companies participating as early adopters in its beta.

# LLMO・GEO（生成AI検索最適化）# マーケティング# 検索エンジン・RAG# 生成AI（LLM）# 業務効率化# 生産性向上

レディ

Readdy

Readdy is an AI website builder: describe the site you want and it generates the design and the code together. You can also start from a template, a screenshot, or a reference URL, then edit it in a no-code editor and publish on your own domain. The official site is available in Japanese. The free plan covers 250 credits a month and 2 projects; paid starts at $25/month for Starter ($15/month equivalent on an annual plan). It also includes GEO optimization to help you get cited in AI search, Credit Care that refunds spent credits when a generation misses, form-based lead capture, and an AI receptionist. More than 120,000 people use it worldwide (as of August 2026).

# LLMO・GEO（生成AI検索最適化）# デザイン生成# コード生成# テキスト生成# 業務効率化# 生産性向上# 日本語対応