Requirements & estimationHardSDE-3

You are building an AI mock-interview feature. Each session is a 30-minute conversation with an LLM. Estimate tokens and monthly LLM cost for 100,000 sessions a month, and say what you would do about it.

Asked at

OpenAI

Think first

Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

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