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PC Gamer
PC Gamer
Jeremy Laird

ChatGPT's hallucination problem is getting worse according to OpenAI's own tests and nobody understands why

OpenAi logo .

Remember when we reported a month ago or so that Anthropic had discovered that what's happening inside AI models is very different from how the models themselves described their "thought" processes? Well, to that mystery surrounding the latest large language models (LLMs), along with countless others, you can now add ever worsening hallucination. And that's according to the testing of the leading name in chatbots, OpenAI.

The New York Times reports that an OpenAI's investigation into its latest GPT o3 and GPT o4-mini large LLMs found they are substantially more prone to hallucinating, or making up false information, than the previous GPT o1 model.

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