VP of Product Marketing & Training @seoClarity. #seo #contentmarketing - #mandolin #blm #lgbtq 🏳️🌈 they/them Threads: @marktraphagen
Durham NC
Joined April 2009
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While I will continue to monitor here I won't be actively posting. Find me on LinkedIn or at bsky.app/profile/marktraphag…
Get my super-simple framework for constructing the best prompts for tracking AI search -- prompts that provide meaningful, actionable results.
linkedin.com/pulse/stop-chas…
Wild! @seoClarity prompt tracking of five major markets shows huge dip in results showing citations for 2-3 months & then a big recovery.
What do you think was behind that?
TechTimes is claiming that on 10 July Google changed to having an AI generated answer to every query, but cites no sources. Across our @seoClarity data I can see some domains with an increase over the weekend, but others are flat
share.google/IThzlwBHsgli3fZ…
@TechTimes_News what is your basis for the claim in your article?
I couldn’t find an AEO/GEO course that was truly at an enterprise level.
So I wrote one.
Take it for free and get certified!
seoclarity.net/seoclarity-ae…
And I it’s not just YMYL info. We found AI was wrong 40% of the time on facts about ANY brand. That’s why we built ArcAI Accuracy, the only AI accuracy checker battle-tested by top enterprise companies. Learn more at seoclarity.net/ai-seo/ai-sea…
Researchers at EPFL proved your AI is lying to you.
Not sometimes. Most of the time.
They built one of the hardest hallucination tests ever made with Max Planck Institute. 950 questions. Four domains where being wrong actually hurts. Legal. Medical. Research. Coding.
Then they ran every top model on it.
The results.
GPT-5. Wrong 71.8% of the time.
Claude Opus 4.5. Wrong 60% of the time.
Gemini 3 Pro. Wrong 61.9% of the time.
DeepSeek Reasoner. Wrong 76.8% of the time.
These are the smartest AI models on Earth. The ones you trust with your career. Your health. Your money.
You think turning on web search fixes it.
It doesn't.
Claude Opus 4.5 with web search. Still wrong 30.2% of the time.
GPT-5.2 thinking with web search. Still wrong 38.2% of the time.
The internet attached. Still lying to you in 1 out of every 3 answers.
Now the part that should scare you.
Medical questions. The one place being wrong can kill you.
GPT-5 hallucinated 92.8% of the time on medical guidelines.
Claude Haiku 4.5 hallucinated 95.7% of the time.
Gemini 3 Flash hallucinated 89% of the time.
Nine out of ten medical answers from popular AI models. Wrong.
It gets worse.
The longer you talk to it, the more it lies.
Early mistakes cascade. The model starts citing its own earlier hallucinations as facts. Your third message is more wrong than your first.
The paper, in its own words: "hallucinations remain substantial even with web search."
This is what hundreds of millions of people are doing right now. Asking software that lies in the majority of its answers. About their health. About their job. About their legal case. About their code.
Most are not checking.
Most never will.
But please. Keep using ChatGPT for medical advice.
The doctors need a break.
arxiv.org/abs/2602.01031
Any tool can give you visibility metrics for AI search. Only ArcAI shows you what to DO next.
More at seoclarity.net/resources/new…
Finally >> ChatGPT search volume we can trust and turn into action seoclarity.net/research/how-…
Because of our superior infrastructure and engineering @seoClarity users are unaffected by this change. See why in first comment below.
Google dropping support for showing 100 results on the page with the URL parameter &num=100 seroundtable.com/google-sear… via @tehseowner and @emvhaccuranker
Here’s our statement on the Google n=100 SERP retrieval problem seoclarity.net/blog/googles-…
ICYMI - looks like Google is slowly but surely moving its shopping experience toward AI over the Product carousels its pushed for years now.
BREAKING!
In the @seoClarity Research Grid, no matter which US ecomm domain we look at, we're seeing a dramatic rise in AIOs in transactional keywords at the same time the Product feature is starting to decline.
7 min video on what this means seoclarity.net/research/ecom…
BREAKING!
In the @seoClarity Research Grid, no matter which US ecomm domain we look at, we're seeing a dramatic rise in AIOs in transactional keywords at the same time the Product feature is starting to decline.
7 min video on what this means seoclarity.net/research/ecom…
Here's a more detailed follow up to my post yesterday using @seoClarity data to show Google is increasing the number of AIOs that rank lower than 1st position.
Thanks to @sengineland for asking me for the data and insights!
searchengineland.com/google-…
