Question bank

4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

Easy 190Medium 2,498Hard 982
Filters · onDifficulty, topic, company
Clear all

24 questions

  1. 1Assign human labelers, tasks, and models so every pairing is balanced.HardCoding· 30 min· OpenAI
  2. 2Build and configure an agent in ChatGPT to solve a client need.Hard· 20 min· OpenAI
  3. 3Create a customer-success plan for an enterprise ChatGPT customer.Hard· 20 min· OpenAI
  4. 4Design a batching service for model inference.HardSystem design· 30 min· OpenAI
  5. 5Design a text-to-video generation system.HardSystem design· 30 min· OpenAI
  6. 6How do you approach generative-AI safety in a consumer product?HardProduct· 20 min· Google, Anthropic
  7. 7How would you respond to a provocative claim about a future dominated by AI?HardBehavioral· 20 min· OpenAI
  8. 8How would you test nondeterministic model behavior?Hard· 20 min· OpenAI
  9. 9Represent a one-nearest-neighbor classifier using a feed-forward neural network.Hard· 30 min· OpenAI
  10. 10Debug a transformer with 4 failing tests, then train a classifier (OpenAI)HardCodingSystem design· OpenAI
  11. 11Design a fine-tuning platform (instruction / PEFT / RLHF)HardCodingSystem design· OpenAI
  12. 12Design a RAG system with evaluationHardCodingSystem design· OpenAI
  13. 13Design ChatGPT to handle 100 million usersHardCodingSystem design· OpenAI
  14. 14Design memory for a personal AI assistantHardCodingSystem design· OpenAI
  15. 15Design ChatGPTHardSystem design· OpenAI
  16. 16How would you design safeguards for an AI system that can take actions on behalf of a user?HardAI MLProduct· OpenAI
  17. 17Design Slack.HardSystem design· American Express, Coinbase
  18. 18Design and implement an in-memory key-value store that supports set, transactional begin, commit, and abort operations.HardCoding· OpenAI, xAI
  19. 19How would you measure the success of ChatGPT Search?HardData· OpenAI
  20. 20Design a notification system.HardSystem design· Goldman Sachs, OpenAI
  21. 21Tell me about a time when you solved a complex problem and how you went about it.HardBehavioral· Amazon, Atlassian
  22. 22Implement backprop for a tiny network (OpenAI)HardCodingSystem design· OpenAI
  23. 23Tell me about the most complex project you have led.HardBehavioral· Amazon, ElevenLabs
  24. 24Describe the most technically complex project you have worked on and explain why it was complex.HardBehavioral· Amazon, Anthropic