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Show you can turn a fuzzy model-behavior question into a rigorous, falsifiable experiment

Interview prep for OpenAI's CoT Monitorability researcher role, which studies whether chain-of-thought reasoning in frontier models stays legible enough to support scalable oversight. This is empirical ML research, not just theory — expect deep dives on experiment design, evaluation-building, and how training interventions (pretraining, RL, post-training) affect monitorability. Strong candidates demonstrate hands-on LLM training/evaluation experience and can reason precisely about what evidence would or wouldn't support a monitorability claim.

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这场面试考什么

  • Empirical ML: training/evaluating/debugging large models
  • Designing falsifiable experiments from ambiguous questions
  • Chain-of-thought monitorability and scalable oversight concepts
  • How training interventions (pretraining, RL, post-training) affect monitorability
  • Distinguishing signal from noise in subtle experimental results
  • Translating findings into practical training/oversight recommendations

常见提问方向

Walk me through an experiment you ran to test a model-behavior hypothesis, start to finish

How would you measure whether a chain-of-thought monitor reliably predicts misbehavior?

What could make CoT monitoring stop working as models scale, and how would you detect it early

Describe a time your experimental results were noisy or subtle — how did you decide what to conclude

How would training directly against a CoT monitor change what the monitor can tell you?

Tell me about hands-on work training or evaluating a large ML model

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