Jamie Thomson
29.9K posts

Jamie Thomson
@jamiet
Dad, atheist, data wrangler, pedant. @louisaburlumi’s husband. @dannytleeds’s brother. Its 100% off if you don't buy it. Mastodon: https://t.co/pfxJnv8V8h
Hanworth Park, Middlesex Katılım Mart 2007
395 Takip Edilen2.3K Takipçiler

The borough map is now fully lit up 🗺️✨
Here’s how #Hounslow voted in the 2026 #localelections…

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Jamie Thomson retweetledi

Researchers sent the same resume to an AI hiring tool twice. Same qualifications. Same experience. Same skills. One version was written by a real human. The other was rewritten by ChatGPT.
The AI picked the ChatGPT version 97.6% of the time.
A team from the University of Maryland, the National University of Singapore, and Ohio State just published the receipt. They took 2,245 real human-written resumes pulled from a professional resume site from before ChatGPT existed, so the human writing was actually human. Then they had seven of the most-used AI models in the world rewrite each one. GPT-4o. GPT-4o-mini. GPT-4-turbo. LLaMA 3.3-70B. Qwen 2.5-72B. DeepSeek-V3. Mistral-7B.
Then they asked each AI to pick the better resume. Every model picked itself.
GPT-4o hit 97.6%. LLaMA-3.3-70B hit 96.3%. Qwen-2.5-72B hit 95.9%. DeepSeek-V3 hit 95.5%. The real human almost never won.
Then the researchers tried the obvious objection. Maybe the AI is just better at writing. So they had real humans grade the resumes for actual quality and ran the experiment again, controlling for it. The result was worse. Each AI kept picking itself even when human judges rated the human-written version as clearer, more coherent, and more effective.
It gets worse. The AIs do not just prefer AI over humans. They prefer themselves over other AIs. DeepSeek-V3 picked its own resumes 69% more often than LLaMA's. GPT-4o picked its own 45% more often than LLaMA's. Each model can recognize and reward its own dialect.
Then the researchers ran the simulation that ends careers. Same job. 24 occupations. Same qualifications. The only variable was whether the candidate used the same AI as the screening tool. Candidates using that AI were 23% to 60% more likely to be shortlisted. Worst gap was in sales, accounting, and finance.
99% of large companies now run AI on incoming resumes. Most of them use GPT-4o. The paper just proved GPT-4o picks GPT-4o 97.6% of the time.
If you wrote your own cover letter this week, you did not lose to a better candidate. You lost to a worse candidate who paid OpenAI 20 dollars.
Your qualifications do not matter if the AI prefers its own handwriting over yours.

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I built a thing github.com/jamiekt/awstui
Run it by issuing:
uvx awstui
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Jamie Thomson retweetledi

@electricbrixton @PaulDraper Got my tickets. What time is Paul on stage?
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As promised @PaulDraper tickets now live 🙌
Commanding our stage with his full electric band.
With the arrival of 'MANSUN RETOLD' due February 20th we celebrate 14 of their top 40 hits on March 27th here in the capital.
Tickets linked here: tinyurl.com/2bwcejkd
[ MANSUN ]

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I just published jstark — 20th March 2026 update medium.com/p/jstark-20th-…
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@OneMorePoint1 @HaskinsIvor @retrofootballnw In another he single-handedly ousted a south american dictator by playing against, and beating, his favourite footy team. Legend.
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@HaskinsIvor @retrofootballnw No, his character lived on occasionally in the Football comic library series.
2 comic books per month. He was Issue 1 'Mission to México' 😆
Him and his mate Cosmo Kent taking on South Parawa in the group stage sticks in my head
I collected those books for years
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@OneMorePoint1 @HaskinsIvor @retrofootballnw Loved the taunting of Jose Killer in the World Cup final to earn a pen.
"How'd you like that Jon Stark?"
"(I like it just fine you idiot)"
Priceless!
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@HaskinsIvor @retrofootballnw Proper blast from the past is Jon Stark 😆
Still grateful to him winning England the World Cup in 86 😆
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jstark 0.1.6 released. Polished a few rough edges pypi.org/project/jstark/
#pyspark
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I just published Announcing jstark — a python library for pyspark feature generation medium.com/p/announcing-j…
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@OctopusEnergy export of electricity usage from your website no longer includes estimated cost, it’s been removed at some point since 2nd December. Please can it be reinstated?
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@LUFC Enjoying DCLs celebratory lifting of Brendy like he’s lifting the Zenith Data Systems Cup
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@TRO1972 @OctopusEnergy I DM’d @OctopusEnergy and someone replied a few minutes later saying “try it now”. I did, and it worked
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@jamiet @OctopusEnergy It’s on the wife’s too. So I’m guessing it’s widespread.
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