decision-models
What a System One model decides, and what it refuses
System One models return typed probabilities for bounded questions and refuse free-form text, code, and reasoning explanations.
Clef, Clef-flash, or Jev: which decision model belongs on the agent hot path?
Use Clef-flash for speed and vision, Clef for a larger model and context window, or Jev for low-cost text routing.
Liquid's d1 now answers from an image
Liquid AI added vision to its d1 decision model on 2026-10-05, returning calibrated probabilities at $0.04 per million input tokens with zero output tokens.