OpenAI has launched its largest artificial intelligence model with fewer so-called “hallucinations”, the latest in a flurry of new AI releases by US tech groups.
The San Francisco-based company on Thursday unveiled GPT-4.5, its long-awaited update to the technology that underpins its popular product ChatGPT. In early tests, its hallucination rate, where AI systems generate inaccurate information, was 37 per cent compared with nearly 60 per cent on its predecessor GPT-4o.
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