- In short
- Prompt failure occurs when an instruction was ambiguous or underspecified and the model filled the gap in an unintended way; it is fixed by clarifying the prompt. Hallucination occurs when the model produces confident, fluent content that is not grounded in the input or a reliable source; it is fixed by grounding the response through retrieval, tool use, or verification. Stronger or more emphatic instructions do not resolve a hallucination, because the model is not aware it is ungrounded.
Full concept guide coming soon
We are building the in-depth, exam-aligned guide for this knowledge point. In the meantime, explore the prerequisites and related concepts below, watch the official Anthropic Academy lessons, and start an adaptive study session to master it with Archie.
Watch and learn
Official Anthropic Academy lessons first, then hand-picked walkthroughs. Videos load only when you press play.
No videos curated for this concept yet
We are still curating the best official and community videos for this topic.
References & primary sources
Adaptive study
Master this concept with Archie
Practice it inside an adaptive study session. Archie, your Socratic AI tutor, tracks your mastery with Bayesian Knowledge Tracing and schedules the perfect next review.