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What is Constitutional AI / RLAIF, and how does it differ from RLHF?

RLAIF and Constitutional AI swap human preference labels for AI-generated ones to scale alignment. The signal is naming exactly what they substitute for human feedback, and the consistency-versus-bias tradeoff that swap creates.

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

RLAIF and Constitutional AI swap human preference labels for AI-generated ones to scale alignment. The signal is naming exactly what they substitute for human feedback, and the consistency-versus-bias tradeoff that swap creates.

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