GPTO — the AEO/GEO engine that makes ChatGPT, Claude, Gemini and Perplexity recommend your brand first
GPTO gets your brand named and recommended more often in the answers AI gives — across ChatGPT, Claude, Gemini, Perplexity and beyond. That work has a name: AEO/GEO.
We were shaping this category before anyone called it AEO or GEO. Weekly monitoring across 10 major LLMs · auto-distribution to 500+ training channels · 18+ languages, all at once.
Market Shift
From search to AI,share is shifting fast
On the current trajectory, AI’s share of queries overtakes search in 2027.
SEO is about being seen. GEO is about being chosen.
If AI doesn’t cite you, you don’t exist to the user. The brand that lands in AI training data first wins the answer.
AI doesn't name every brand
AI answers draw from two sources —GPTO optimizes for both
Only a handful of brands make it into any AI answer. To be one of them, you have to earn your place in both sources.
Training data
AI pulls from the large-scale text data it was pre-trained on. Brands mentioned often, and positively, across the web are the ones most likely to show up in an answer.
Live web search
For questions that need current information, AI searches the web directly. Brands cited by well-structured sites and high-trust sources get quoted first.
GPTO optimizes both at once.
We design and distribute content to earn a place in training data, and build the channels that get you cited first in live web search.
We created the category
Generative Pre-trained Transformer Optimization
Definition
We design and deploy the data AI trains on, so your brand gets recommended inside AI answers.
GPTO started researching this technology in March 2025, before AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization) were even terms. That head start made us one of the first AI answer-optimization services on the market, and the company that defined the category.
We wrote the book on this industry
We defined this industry.
GPTO’s founder, Jaehong Lee, wrote the bestseller “The AEO·GEO Survival Strategy” (Miraebook).
Bestseller
“The AEO·GEO Survival Strategy”
The field’s first hands-on strategy book. It turned AEO·GEO into a repeatable playbook.
- ·Bestseller · #5 in Business & Economics · #17 overall
- ·Published by Miraebook, the house behind the bestselling Trend Korea series
- ·Breaks down exactly how brands get chosen in AI answers, all the way to execution
Founder
Jaehong Lee · Across Inc. Founder & CEO
KAIST Industrial Engineering · Data Scientist at Cheil Worldwide · Creator of GPTO’s core technology
Backed & recognized
Primer Batch 27
Selected from 300+ applicant teams
Hashed Ventures
Backed by a global blockchain & AI VC
2026 Enterprise Excellence Award
For brand visibility & recommendation optimization
Across Inc.
An elite team, all engineers
Not an agency. An engine.
A data-driven, four-step closed loopthat trains AI answers to recommend your brand
Measure → strategize → publish → re-measure. An optimization engine that runs automatically, every week.
- STEP 1
Monitoring
Every week, we measure how ChatGPT, Claude, Gemini, Perplexity, Grok, and the rest of the top 10 LLMs answer your target questions.
- STEP 2
Diagnostics
Our SMR (Share of Model Response) metric scores how often AI answers mention your brand versus competitors, and in what context — so you know exactly where you stand.
- STEP 3
Strategy
From that data, we design the core messages and training-data structures most likely to get cited.
- STEP 4
Distribution
We ship that optimized training data automatically across 500+ channels AI models read first, in 18+ languages.
When you’ll see results
It’s a long game.GPTO gets you there fastest
Plan on at least 6 months of active optimization. For newer brands, give it a year or more.
0–2 weeks
Target questions defined · baseline monitoring diagnostic
Target questions defined · baseline monitoring diagnostic
2 weeks–3 months
First mentions land in AI answers · mention rate starts climbing
First mentions land in AI answers · mention rate starts climbing
3–6 months
Mention rate rises · your lead over competitors widens in AI answers
Mention rate rises · your lead over competitors widens in AI answers
6+ months
Position holds in AI answers · ongoing optimization protects the lead
Position holds in AI answers · ongoing optimization protects the lead
We publish the data
Data from 100+ customers,published in full
We publish the full performance record: wins and misses, nothing cherry-picked. Verified results, whatever your industry or language.
- 100+
- Customers
- +15%
- Avg. lift in AI brand visibility
- 18+
- Languages run in parallel
- Top 10 LLMs
- Monitored weekly
Customers include 크몽, 트레바리, 마이리얼트립, 보이저엑스, 와탭랩스, 엘리스, 라엘, 한국경제, and more. See more customers →
Partners we work with
Partners: 대홍기획 · REVU · 메디고라운드 · 고객의눈
Why GPTO
GPTO vs OTHERS“We talked to a lot of vendors. GPTO was the only one willing to show us real, transparent performance.
“The only tool we found that gets results without touching our own site or channels.
Performance Proof
Optimized clients' AI brand visibility climbs
on average 35.4% → 40.6% (+15%)
On identical (question × AI-model) pairs measured before and after, brand visibility rose across every industry, major AI model, and language. GPTO is an optimization engine that measures and improves how visible a brand is inside AI answers. Across 220,000+ real monitoring data points, it delivered an average +15% gain in brand visibility. (Metric: AI brand visibility = SMR, Share of Model Response.)
- AI brand visibility (SMR)
- 35.4% → 40.6%
- Average growth
- +15%
- Matched pairs analyzed
- 3,141
- Cumulative monitoring data
- 223,882
- Content-publishing clients
- 135
Matched Cohort design with identical (question × AI-model) pairs held fixed. We compared the first 14-day window against the latest, on a mature cohort of content-publishing clients optimized for 45+ days.
Measured by industry
Any industry, any language.GPTO delivers results everywhere
Representative cases from 100+ customers. Every figure is the average mention rate across the 5 major LLMs, published raw and unedited.
Scope
A clinic staffed by emergency-medicine specialists, open for night care 365 days a year
Before
10.3%
After
43.4%
Δ
+33.1%p
Mention rate by sample query
- Which clinic near me is open for night care?17% → 49%
- A clinic near me I can go to at night instead of the ER if I get hurt17% → 49%
- Where can I get a nutrient IV or fatigue-recovery drip near me?0% → 34%
- Which clinic near me is best for ingrown toenails?6% → 50%
Case Study
Real shifts in AI answers
How AI answered “Korea’s top startup accelerator” — before and after
Sound familiar?
If even one rings true,GPTO is the answer.
The 100+ companies running GPTO today all started with these same problems.
Run the URL DiagnosticAsk AI about our industry and only competitors come up.
Our site is image-heavy, so AI can't read its structure.
We invest in SEO, but AI answers never mention us.
We're entering new markets, but AI skips us in other-language queries.
We want to start GEO but have no idea where to begin.
Choosing an agency?
Who does AEO·GEO best?
Choose an AEO/GEO partner on verifiable criteria, not a self-published ‘recommendation ranking’. Six things tell the difference: how many LLMs are actually monitored and how often, whether the performance metric (SMR) is transparent, language and channel reach, third-party-verified authority, quantified case studies, and a category-defining track record. GPTO publishes all six, and has defined this category as the first AI answer-optimization technology engine since March 2025.
Frequently Asked Questions
FAQ
Answers to the 14 questions we hear most often about AEO/GEO optimization.
AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization) are AI-search methods for getting your brand mentioned and recommended inside answers from generative AI like ChatGPT, Claude, Gemini, and Perplexity. GPTO is the technology engine that has defined and run this category from day one.
Before you ask GPTO,ask the AI yourself.
Ask ChatGPT, Claude, and Gemini about your brand. See if they recommend you. If they don’t, GPTO makes sure they do.
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