llemmy Research

Field notes on the AI answer economy

Original research and practical analysis on how AI engines cite brands, and how to earn a place in the answer. Grounded in what we measure across ChatGPT, Claude, Gemini, Perplexity and Google AI.

Featured report

The State of AI Search & GEO in 2026

How AI engines like ChatGPT, Claude, Perplexity and Google AI cite brands in 2026: what Generative Engine Optimization (GEO) is, the AI Citation Gap, and how to show up in AI answers.

June 2026 · 9 min read

Latest

The newest research, hot off the daily desk.

Citations and sources

Where AI citations come from, who earns them, and why the engine names one brand over another.

Data Study

What AI engines actually cite: 37,547 citations analyzed

We analyzed 37,547 citations across 5,200 AI answers from ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews. Only 5% pointed to the brand's own site. Here is what AI actually cites, and what it means for GEO.

June 2026 · 9 min read
GEO playbook

From crawl to citation: how an AI answer gets built

An AI citation has a lead-up: an engine crawls your page, retrieves it, then names you. How to win each stage, and read the crawl-to-citation timing honestly.

July 2026 · 8 min read
Search Console

The AI Citation Gap: where you win on Google but lose the AI answer

Your AI Citation Gap is the set of queries you rank for on Google but never get cited for in AI answers. Here is how to find it with Search Console, prioritize it by traffic value, and close it.

June 2026 · 7 min read
Earned Media

Earned media drives most AI citations. Here is how to make yours count

Study after study puts earned media behind the large majority of AI citations, with journalism a big slice. That makes GEO partly a PR problem. How to earn the right coverage and measure whether AI actually cites it.

July 2026 · 8 min read
Citations

Being cited by AI is not being recommended, and the gap decides the sale

AI can pull your page as a source and still recommend a competitor by name. Citation and recommendation are different outcomes. Why the gap happens, why self-ranking best lists fail, and what to measure instead.

July 2026 · 8 min read
Competition

AI search is winner-take-most. Here is how challenger brands break in

A small share of brands capture most AI recommendations while most are invisible, and the concentration is intensifying. Why it happens, why it is not hopeless for challengers, and what to measure.

July 2026 · 8 min read
AI Citations

Reddit runs the AI answer now, and its spam purge just changed the GEO playbook

Reddit is one of the most cited sources in AI answers, and it is now deleting the posts planted to game them. What the GEO spam crackdown means for brands, and how to earn citations that last.

July 2026 · 9 min read
AI Citations

Do you need an llms.txt file to get cited by AI? What 300,000 domains say

A vendor tells you to ship an llms.txt file and the AI engines will read your site. The 2026 data says it does not move your citations. Here is when it is worth doing anyway, and how to actually test it.

July 2026 · 8 min read

Measurement and visibility

How to measure AI visibility credibly: per engine, with confidence, and over time.

AI Visibility

How to track your brand across AI search engines

A practical playbook for monitoring how ChatGPT, Claude, Gemini, Perplexity and Google AI cite your brand: which prompts to track, how often, and how to read the numbers honestly.

June 2026 · 8 min read
Competitor Intel

AI share of voice: how to measure it without fooling yourself

Share of voice in AI answers tells you how often engines pick you over rivals. Here is how to calculate it correctly, why branded prompts ruin it, and how to read it per engine and per topic.

June 2026 · 7 min read
AI Visibility

Your AI visibility is not one number, it is five, and they barely agree

The same brand can be everywhere on Perplexity and nearly invisible on ChatGPT. Citation rates and sources diverge enormously by engine, so a single blended score misleads. How to track and win each one.

July 2026 · 8 min read
Reporting integrity

How llemmy measures AI visibility (and what we don't claim)

Exactly how llemmy derives every number: presence as a rate, with sample size and a 95% Wilson confidence interval, over your recent answers. Plus an honest account of what a confidence interval does not fix.

June 2026 · 6 min read
Measurement

Why llemmy doesn't track branded prompts like other tools

Branded prompts return ~100% AI visibility by construction, which quietly inflates your reporting. Here is why llemmy keeps them out of the headline score and routes them into sentiment and accuracy instead.

June 2026 · 6 min read
Campaigns

How to measure content effectiveness in AI search

Publishing content and hoping AI notices is not measurement. Here is how to run a content campaign against AI visibility: baseline first, read the change against a confidence interval, and find which pages actually win citations.

July 2026 · 8 min read
Reporting

What belongs in a monthly AI search report

A monthly report is not five dashboard screenshots stapled together. Here are the surfaces that belong in one, why each matters, and the honesty rules that make a client trust it.

July 2026 · 7 min read
Local

Local visibility in the AI era: your map pack, rating, and reviews

As AI answers absorb local search, your Google local pack and review profile decide who nearby customers see. Here is how to track them honestly, and what public tools can and cannot measure.

July 2026 · 6 min read
Citation Lag

How fast can AI cite you? Crawl-to-citation lag, and why a daily read matters

SEO taught you to wait a quarter. AI search is faster in both directions: retrieval engines can cite a page within days, and a daily read catches it. What crawl-to-citation lag looks like, honestly.

July 2026 · 7 min read

Getting cited: optimization

The work of earning the citation: readability, structure, freshness and authority.

GEO Score

What makes a page AI-readable: a practical GEO checklist

AI engines cite pages they can fetch, understand and trust. Here is a practical checklist for making your content AI-readable, and the common reasons engines skip a page that ranks fine on Google.

June 2026 · 8 min read
Content Optimization

Content optimization for AI answers, beyond the checklist

Getting retrieved and getting cited are different battles. How structure, atomic claims, formats and refreshes win citations, and how to prove an edit worked.

July 2026 · 9 min read
GEO playbook

Content freshness and AI citations: what the data actually shows

AI answer engines rerank retrieved pages and the citation data skews hard toward recently updated content. What the studies say, where the effect is real vs correlational, and a practical refresh playbook.

July 2026 · 7 min read
E-E-A-T

E-E-A-T for generative engines: what still counts when the ranker is an LLM

Google's E-E-A-T half-transfers to AI answers. The trust signals LLMs actually pick up: entity consistency, authorship, schema, and what does not carry over.

July 2026 · 9 min read
Fan-outs

Query fan-out: the searches an AI runs before it answers you

Before an AI engine answers a question, it often runs its own background searches first. Those searches are a direct signal of how the model frames your category, and most tools that show them are not being straight about where the numbers come from.

July 2026 · 9 min read
Fan-outs

Fan-outs tell you what to write. Corroboration is what gets you cited

A tactical GEO guide to AI fan-out queries: read them as the model's own keyword research, cover the subjects with answer-shaped content, then earn the cross-source corroboration that actually wins the citation.

July 2026 · 9 min read

Brand, reputation and risk

What AI says about you across the answer layer, and the cost of it getting you wrong.

The AI search market

Where AI search is heading, and what it means for how buyers find and choose you.

Put it to work

Instrument your site, measure the traffic AI drives, and switch tools without losing history.

See how AI describes your brand

Run a free GEO audit, no signup needed to see your score, or start tracking your brand across every AI engine.