Advanced Methodologies

As AI training evolves, several cutting-edge approaches are becoming standard practice:

Constitutional AI (CAI)

Instead of providing feedback on every single response, you help define a "constitution": a set of ethical principles the model should follow. The AI then uses these principles to critique and improve its own responses.

Why it matters: Allows models to self-improve using clearly stated values like "avoid harmful content" or "be respectful," reducing the need for human review on every output while maintaining ethical alignment.

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RLAIF (Reinforcement Learning from AI Feedback)

Similar to RLHF, but uses AI models to generate some of the preference rankings instead of humans doing all of it. This doesn't eliminate human input, but rather amplifies it by having AI help with simpler comparisons while humans focus on complex, nuanced cases.

Why it's useful: Makes training more scalable and cost-effective. One piece of human feedback can cost $1-10+, while AI feedback costs less than $0.01. However, human judgment remains essential for pushing the frontier and handling subjective, culturally sensitive, or novel situations.

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Rubric-Based Evaluation

Instead of simply saying "Response A is better than Response B," you evaluate responses against specific criteria or rubrics. For example, rating a response on helpfulness (1-7), accuracy (1-7), and safety (1-7) separately.

Why it matters: Provides much richer training data. The model learns why something is good or bad, not just that it's better or worse.

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Evaluation Environments (Evals)

This involves creating test scenarios and benchmarks to measure if models are actually improving in specific capabilities like coding, medical reasoning, or following complex instructions.

Why they're critical: Training is expensive. Before investing in more training, teams need to know if the model is actually getting better at the things that matter.

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Collective Intelligence Approaches

Combining judgments from multiple evaluators to achieve better accuracy than any single expert.

Example: In medical AI, research shows that aggregating opinions from multiple medical students or residents can outperform individual board-certified physicians on data labeling tasks.

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