Phase 18: Ethics, Safety & Alignment

Scalable Oversight and Weak-to-Strong Generalization

Burns et al. (OpenAI Superalignment, "Weak-to-Strong Generalization", 2023) proposed a proxy for the superalignment problem: fine-tune a strong model using labels produced by a weaker model. If the strong model generalizes correctly from imperfect weak supervision, current human-scale alignment methods may extend to superhuman systems. Scalable oversight and W2SG are complementary. Scalable oversight (debate, recursive reward modeling, task decomposition) increases the overseer's effective capability so it can keep up with the model under oversight. W2SG ensures the strong model generalizes correctly from whatever imperfect supervision the overseer provides. Debate Helps W2SG (arXiv:2501.13124, January 2025) combines them. Define scalable oversight and weak-to-strong generalization and explain how they are complementary. Describe the Burns et al. 2023 experimental setup: fine-tune GPT-4 using labels from GPT-2. Explain the performance gap recovered (PGR) metric and what it measures. State the three major scalable-oversight mechanisms (debate, recursive reward modeling, task decomposition) and one strength of each. Every alignment technique so far in Phase 18 assumes the overseer can evaluate the model's behaviour. When the model is superhuman, the overseer is the weak link. The superalignment question: can a weaker supervisor reliably produce a stronger, aligned model? Burns et al. reduce this to an operationalized empirical setup: supervise strong with weak, measure how much of the strong model's capability survives the weak supervision. This is not a…

Scalable Oversight and Weak-to-Strong Generalization: Burns et al. (OpenAI Superalignment, "Weak-to-Strong Generalization", 2023) proposed a proxy for the…

This free lesson is part of the AI Engineering from Scratch curriculum. Read the full explanation, run the lesson code, and verify the result in the interactive reader or from the repository source.

Browse the complete course catalog or open this lesson on GitHub.