hardOpenAI

How do you know your AI system is actually working well?

Reported as the question OpenAI FDE interviewers push hardest on, and the one where 'we look at the outputs' ends loops. The three-legged answer that passes: automated metrics, calibrated human evaluation, and feedback loops wired to a business number.

Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

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