howtospark
Training

Preference tuning (RLHF / DPO)

Edit or adapt a modelFine-tuningReference

Optimize the model against preference or reward signals (RLHF, DPO, RLAIF) — how agentic and tool-call behaviors like NSC-ACE get shaped.

Objective
Edit or adapt a model
Targets
Weights
Format
Reward / preference optimization
Granularity
Full-weight or adapter
Lifecycle
QAT / QAD · needs gradients
Calibration
Full corpus
Compression
None — reshapes behavior, not size
Quality
Aligns outputs to preferences; can tax general capability
Hardware
Preference dataset + RL/DPO training loop
Runtimes

A worked Spark recipe for this method hasn't been written yet — it lives here as a reference point in the ontology.