Hugging Face Transformers merges decision models primitive: Jev, KEV, CLEF, Decider
multimodalart · x · 2026-11-10
Hugging Face Transformers has merged Jev plus a decision core (PR #50054), introducing "decision models" as a new primitive that Lysandre Jik thinks could matter more than supporting any single model. Implementations differ: typesafeai's Jev uses typed decisions with calibrated probabilities in one forward pass; AutoTrustAI's JEV builds open System One models around a learned decision block; Jared Palmer's KEV uses a pointer head sharing state computation across questions; Cloudflare's CLEF uses a joint schema head routing evidence; Perplexity's Decider adds a 255-way readout on Qwen with non-causal attention; Liquid AI's d1 explores small multimodal decision models. The accompanying code sample shows one pipeline call outputting refund intent, tone and urgency in a single pass.
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