AI IQ

AI IQ is not as high on a culture-fair IQ test as you might think

AI IQ was put to the test - only one out of three models passed the official Culture Fair IQ Test. See the surprising results and compare your score.

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AI vs. IQ: Just One Model Passed the Culture Fair Test

Press ReleaseMay 23, 2025

The Finnish IQ testing specialist, Wiqtcom, has put state-of-the-art artificial intelligence models to the test - literally. Using the official Culture-Fair IQ Test, designed to measure pure reasoning ability independent of language or cultural background, we tested three advanced AI models, including the latest version of ChatGPT.

ChatGPT IQ Test Results

The results? Only one out of three models successfully completed the test within the time limit. However, GPT-o1 exceeded the time limit, resulting in a technical fail. The only model to both complete the test on time and pass was ChatGPT-4o.

Here's how the models performed on our official IQ test:

Model IQ Score Time spent
ChatGPT-4 Failed 5–6 minutes
ChatGPT-o1 82 (time limit exceeded) 70 minutes
ChatGPT-4o 82 5 minutes

Both GPT-o1 and GPT-4o achieved a score of 82, placing them in the "Dullness" IQ score range. While the term may sound a bit striking, it simply indicates slightly below-average performance compared to the human average IQ of 100.

IQ Score Traditional Ranking System % of population
≥ 140 Genius level > 0.4
130-139 Gifted 2.3
120-129 Very Superior Intelligence 6.4
110-119 Superior Intelligence 15
90-109 Average/Normal 47
80-89 Dullness 14
70-79 Borderline deficiency 5.8
50-69 Mild Mental Retardation 2.2
35-49 Moderate mental retardation  
20-34 Severe mental retardation  
< 20 Profound mental retardation  

Interestingly, performance patterns revealed that ChatGPT-4o handled the more difficult questions toward the end better, while GPT-o1 excelled at the simpler ones at the beginning - showing how different AI models may reason in different ways.

This experiment highlights an important reality: despite their linguistic and computational power, AI models may not yet rival humans in abstract, non-verbal reasoning - especially under time pressure.

Can you beat AI on a test of pure logic? Take the same official Culture-Fair IQ Test and find out.

Find out more about the experiment at https://worldwide-iq-test.com/articles/chatgpt-iq.

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