Tacit-2B (preview)

Tacit-2B makes typed decisions (choose an option, answer yes/no, or pick an ordered level) in a single forward pass, returning a probability over the options. It is built on Qwen/Qwen3.5-2B with AnyJev self-distillation: the base model wrote its own decision problems, answered them with its reasoning on, and learned to give those answers in one forward pass. No human labels, external datasets or other models were used.

Results

Accuracy in one forward pass on the full test sets, with the same prompt and readout for both models.

benchmark Qwen3.5-2B Tacit-2B difference
JevBench (public set, 231) 0.641 0.671 +3.0 pts
bev-decision (test split, 46,320) 0.596 0.626 +3.0 pts

Apache-2.0, as is the base model by the Qwen team.

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