Curated · Spot the Error
Top 25 Spot the Error Interview Questions
Here are the top 25 AI interview questions in Spot the Error format, sorted by community quality. Each entry links to a detailed answer with explanations, hints, and source-grade follow-ups. See all in this format →
Sorted by community quality · refreshed as new questions are published.
- 01Spot the error in this explanation of temperature.Spot the ErrorEasy·Qual 4.3
- 02Spot the error: 'The FFN mixes information across tokens'Spot the ErrorEasy·Qual 4.0
- 03Spot what's wrong with this prompt: 'You are a helpful assistant. Please be thorough and accurate. Give a good answer.'Spot the ErrorEasy·Qual 4.0
- 04DataCollator pads to max_length and sets attention_mask = ones: find what breaksSpot the ErrorMedium·Qual 4.0
- 05Spot the masking bug in this packed-sequence training setupSpot the ErrorMedium·Qual 4.0
- 06A batch packs a causal LM with right-padded sequences and applies only the causal mask. Spot the mistake.Spot the ErrorMedium·Qual 4.0
- 07Spot the errors in this description of continuous batchingSpot the ErrorMedium·Qual 4.0
- 08Spot the flaw: a claim that attention by itself notices position.Spot the ErrorMedium·Qual 4.0
- 09Spot the error: 'Pre-norm and post-norm are interchangeable, just a stylistic choice'Spot the ErrorMedium·Qual 4.0
- 10Spot the errors in this explanation of input vs output pricingSpot the ErrorMedium·Qual 4.0
- 11Spot the error: 'I apply the causal mask by setting masked positions to 0 in the attention scores before softmax.'Spot the ErrorMedium·Qual 4.0
- 12Spot the bug: a junior engineer's conversational RAG implementation produces nonsense retrievals on turn 3+. Find the error in the retrieval logic.Spot the ErrorMedium·Qual 4.0
- 13Spot the augmentation config bug in this production RAG YAML that's causing 'lost in the middle' faithfulness regressions on long-context queries.Spot the ErrorMedium·Qual 4.0
- 14'Prompt caching cuts our bill by 90 percent across the board', what's overclaimed?Spot the ErrorMedium·Qual 4.0
- 15Spot the error in this candidate's description of IVF's two main parameters.Spot the ErrorMedium·Qual 4.0Pinecone
- 16Find the wrong move in 'decode is slow, so let's switch to a smaller-FLOP model'Spot the ErrorMedium·Qual 4.0
- 17Diagnose the reasoning error in 'a bigger tokenizer vocabulary always cuts our token bill'Spot the ErrorMedium·Qual 4.0
- 18Spot the errors in this 'API is slow because of network and tokenizer' explanationSpot the ErrorMedium·Qual 4.0
- 19Spot the error: 'BPE tokenizers can produce [UNK] when they encounter rare words'Spot the ErrorMedium·Qual 4.0
- 20Predict what softmax produces when every key in a row is masked out.Spot the ErrorMedium·Qual 4.0
- 21Spot the error in this Claude Desktop MCP server configurationSpot the ErrorMedium·Qual 4.0Cursor
- 22Spot the error in this claim about attention and position.Spot the ErrorMedium·Qual 4.0
- 23Find the bug: a Llama deployment serves traffic without prepending the BOS token.Spot the ErrorMedium·Qual 4.0
- 24Spot the conceptual error: 'We're using PQ instead of HNSW for our vector index because PQ is faster.'Spot the ErrorMedium·Qual 4.0Zilliz
- 25Spot the issue with this production prompt template that adds Chain-of-Thought to every customer-support query, including simple fact-lookup ones.Spot the ErrorMedium·Qual 4.0
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