Sciev v0.1

Sciev (sci+ev) — open System-One-style decision model: typed questions over a state → calibrated probabilities in one forward pass. No generation, nothing to parse.

Frozen LLaDA-8B (masked-diffusion, bidirectional) + specialist heads (~2M params). The only open entry in the ecosystem on a diffusion backbone, and the only one with exact option-order invariance (flip rate 0.00 by construction via canonical ordering).

Head checkpoints (assets)

asset	type	head
sciev-v0.1-c_choice.pt	choice	AttnPool multi-layer {8,16,24,32}
sciev-v0.1-c_noul.pt	noul	MLP
sciev-v0.1-c_score.pt	score	MLP + ordinal aux loss

Backbone downloads from HF automatically (GSAI-ML/LLaDA-8B-Instruct).

Headline numbers

benchmark	acc	note
sci battery choice	0.870	auto@5% = 0.81, flip = 0
SciFact noul	0.853	~4pts from open SOTA
SST-2 / AG News (zero-shot)	0.930 / 0.854	general transfer
GPQA	0.315	= backbone ceiling (~0.33)

Model card: MODEL_CARD.md · Paper draft: paper/main.tex · Status: docs/PROJECT-STATUS.md

Apache-2.0. Research preview — K>4 options and score remain limited (see model card).