AI hallucinates more frequently as it gets more advanced — is there any way to stop it from happening, and should we even try?

3D illustration of Symbol of an eye , butterflies and mathematical formulas on the subject of AI hallucinations.

The more advanced artificial intelligence (AI) gets, the more it "hallucinates" and provides incorrect and inaccurate information.

Research conducted by OpenAI found that its latest and most powerful reasoning models, o3 and o4-mini, hallucinated 33% and 48% of the time, respectively, when tested by OpenAI's PersonQA benchmark. That's more than double the rate of the older o1 model. While o3 delivers more accurate information than its predecessor, it appears to come at the cost of more inaccurate hallucinations.