Foundation Lab

Deliberative Alignment

Trains models on explicit specifications rather than implicit reward shaping

Concept 85 of 100Scaling & AlignmentPhase 12
#85DeliberativeScaling & Alignment
key equation
max⁡πE[rhelp]+λE[vS]\max_\pi \mathbb{E}[r_{\text{help}}] + \lambda \mathbb{E}[v_S]
Reading map and next steps

Selected Foundation Object

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Concept 85 of 100DeliberativeScaling & Alignment / Phase 12: Advanced alignment & safety research
Current question

Model retrieves relevant policy text, reasons about it, then responds

max⁡πE[rhelp]+λE[vS]\max_\pi \mathbb{E}[r_{\text{help}}] + \lambda \mathbb{E}[v_S]
PredictionCommit before tracing the equation.

Ask what should change under a concrete input, then trace that expectation through the equation.

EvidenceCompare the equation and source.

Use the key equation and canonical papers as the available witnesses, without implying that a runnable panel exists.

InvariantName what survives notation changes.

The useful learning product is the reusable mechanism you can carry into another model, paper, or engineering tradeoff.

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Why It Matters for Modern Models

  • Trains models on explicit specifications rather than implicit reward shaping
  • Enables auditability: which policy clauses were consulted?
  • Reduces over-refusal while improving jailbreak robustness

What Tutorials Skip

What is still poorly explained in textbooks and papers:

  • Model retrieves relevant policy text, reasons about it, then responds
  • Like Constitutional AI but with explicit spec document in context
  • Pareto frontier: helpfulness vs safety vs over-refusal

Visualization Status

Core Math (Optional Deep Dive)

If you want intuition first, start with the key equation and cited sources. Come back here for the full walkthrough.

Key Equation
max⁡πE[rhelp]+λE[vS]\max_\pi \mathbb{E}[r_{\text{help}}] + \lambda \mathbb{E}[v_S]

Train model to reason over safety specifications SS:

Constrained optimization view:

max⁡πE[rhelp(x,y)]s.t.E[vS(x,y)]≥τ\max_\pi \mathbb{E}[r_{\text{help}}(x,y)] \quad \text{s.t.} \quad \mathbb{E}[v_S(x,y)] \ge \tau

Lagrangian form:

max⁡πE[rhelp]+λE[vS]\max_\pi \mathbb{E}[r_{\text{help}}] + \lambda \mathbb{E}[v_S]

where vSv_S scores compliance with spec text SS.

Canonical Papers

Deliberative Alignment: Reasoning Enables Safer Language Models

OpenAI2024arXiv
Read paper →

Connections

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