Anthropic guide identifies common prompt errors leading to AI hallucinations.

A technical guide from Anthropic highlights that poorly designed prompts are a primary cause of unhelpful or incorrect AI outputs. Common errors include using overly broad requests, lacking clear output structure, and providing vague stylistic instructions. The guide recommends using specific role definitions, explicit formatting rules, and cleanly separated directives and restrictions. These precise constraints help guide the AI's probabilistic model toward generating more accurate and useful responses.