The Fatal Flaw of AI Hallucination: When LLMs Confidently Tell Lies

A journalist recently called out DeepSeek for its "serious lying problem" — the model can write a beautifully crafted biographical sketch in classical Chinese style, but the person's birthplace, mother's surname, and life events are all fabricated. This isn't an isolated incident; it's one of the most stubborn bugs in the LLM industry, and it has a name: AI Hallucination . Right after the May Day holiday, a few bombshells hit the AI world. First, DeepSeek was called out for becoming "cold and po