AI hallucinations occur when AI systems generate outputs based on faulty or misperceived information, leading to inaccurate or nonsensical results that seem plausible but are entirely incorrect. This phenomenon primarily arises in AI models trained on vast datasets, especially with
large language models (LLMs), which may confidently present fabricated details without any grounding in factual data. As noted by
Google Cloud, these errors can stem from various factors including insufficient training data, biases, and flawed algorithms.