Smartest AI models ranked: why text-only systems dominate Mensa IQ tests

OpenAI's o3 model leads with a genius-level IQ of 135 on the Mensa Norway test, highlighting a surprising trend where all top AI performers are text-only, unable to process images. This challenges assumptions about AI intelligence and its modalities.

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Updated 11h ago
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Sources: Visual Capitalist
The latest rankings of AI intelligence, based on the Mensa Norway IQ test, reveal that text-only AI models dominate the leaderboard.
OpenAI’s text-only o3 model leads with a score of 135, placing it firmly in the "genius" category, surpassing the average human IQ range of 90 to 110.
This Mensa test is a highly respected and challenging exam designed to evaluate human intelligence, making these AI scores particularly notable.
Surprisingly, all of the top 10 smartest AI models are text-only systems, which means they do not have the ability to read or process images. This dominance suggests that current AI advancements in natural language processing have outpaced multimodal capabilities in IQ test performance.
The results highlight the strength of language-based AI in reasoning and problem-solving tasks traditionally used to measure intelligence.
"Topping the chart is OpenAI’s text-only o3 model, scoring a 135 on the Mensa IQ test, which puts it in the ‘genius’ category," the data notes.
The findings challenge assumptions that multimodal AI, which can interpret images and text, would outperform text-only systems in such cognitive benchmarks.
As AI development continues, these rankings provide insight into which architectures currently excel in human-like intelligence assessments.
Sources: Visual Capitalist
OpenAI’s text-only o3 AI model tops the Mensa Norway IQ test with a score of 135, placing it in the genius category. Surprisingly, all top 10 smartest AI models are text-only systems, highlighting their dominance despite lacking image processing capabilities.
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OpenAI’s text-only o3 model scoring 135 on the Mensa IQ test clearly demonstrates the advanced capabilities of text-based AI systems.
AI Research Analyst
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Key Facts
  • Mensa Norway IQ test is used as a benchmark to evaluate AI intelligence, recognized as a highly difficult IQ exam for humans.Visual Capitalist1
  • OpenAI's text-only o3 model tops the chart with a score of 135, placing it in the genius-level category.Visual Capitalist1
  • Average human IQ ranges from 90 to 110, while a score above 130 is typically considered genius-level.Visual Capitalist1
  • All of the top 10 smartest AI models are text-only and cannot read or process images.
Key Stats at a Glance
OpenAI o3 model Mensa IQ test score
135
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Average human IQ range
90-110
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Genius-level IQ threshold
130
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Number of top smartest AI models that are text-only
10
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