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.
In an era of great power rivalry, Canada is choosing to be principled and pragmatic. To name reality, to act together, and to build what we claim to believe in.
The Insurrection Act: "What was once a fire extinguisher behind glass—clearly labeled “break only in emergency” to quell violence—now looks like a bottle of lighter fluid."
My latest in @BulwarkOnline
A forceful speech by Poland 🇵🇱 FM @radeksikorski prior to the by now famous 🇺🇳 vote on the 🇷🇺 aggression against 🇺🇦, where 🇺🇸 supported 🇷🇺 against 🇺🇦 and 🇪🇺.
Our staff are not safe. There is starvation. We cannot distribute the aid we have.
Today, from inside #Gaza, WFP's Deputy Executive Director @CarlSkau describes what he witnessed on the ground.
We need a humanitarian ceasefire.
Lunds universitet hamnar på plats 8 i världen av 1 403 rankade lärosäten i QS World University Ranking: Sustainability, som rankar hållbar utveckling vid lärosäten i världen. Det är tredje bäst i Europa och topp i Sverige! https://t.co/6hoqSZOMd7 @worlduniranking#hållbarhet
Bra av Per Wirtén! ”Det är förfärligt att se hur en del ignorerar de massakrerade israelerna, medan andra accepterar de 12 000 dödade palestinierna utan starka invändningar” https://t.co/oXargR611S
"För bosättarnas våld på Västbanken finns inget som helst rättfärdigande. Det måste Israels vänner inte rygga för att påpeka.
Bosättningarna på Västbanken är ett hot både mot en framtida fred och mot staten Israel."
https://t.co/2RtzmvzTG1
"För bosättarnas våld på Västbanken finns inget som helst rättfärdigande. Det måste Israels vänner inte rygga för att påpeka.
Bosättningarna på Västbanken är ett hot både mot en framtida fred och mot staten Israel."
https://t.co/2RtzmvzTG1
En av Sveriges mest välrenommerade infektionsforskare (malaria) om beslutet att dra in finansieringen av stödet till utvecklingsforskning
https://t.co/dt8yVrfStA via @SvD
Jag har funderat fram och tillbaka på det egendomliga förslaget att ledamöterna till styrelserna för universitet och högskolor bara ska utses på 17 månader, i stället för normalt 36 (tre år). Varför föreslår regeringen detta helt plötsligt?
Join us for one of two #workshops at the SRA-Europe conference in #Lund on June 18th. One for early-career researchers and practitioners, and another to gather insights for EFSA’s risk communication research roadmap. Register now! #SRAEurope
https://t.co/Xq7DRa4IW8