Quaedra Research

Jet

A typed decision model. Give it a state and named questions; it returns choices, scores and probabilities, never free-form text.

v6.2Latest release
Qwen3.5-4BBase model, rank-16 LoRA
16,384Max prompt tokens

How it works

Each answer option maps to a single label token. Jet reads the next-token logits for those labels only, divides by a temperature fitted on held-out data, and applies softmax. One forward pass per question, no sampling. Answers always follow the requested type, but decisions can still be wrong.

TypeCriteriaAnswer
choice2–255 named optionsSelected key, probability per key
score2–10 ordered levelsFractional score, level, probabilities
noulNoneProbability that the answer is yes

Benchmarks

Jet v6.1 vs. Kev 8B, percentage points

Difference from the archived Decision Index 0.1 reference score on 21 benchmarks where the metric and case count match.

Development evaluation of the v6.1 step-2,000 adapter before its BF16 merge, not v6.2. Kev figures are archived published scores, not a new local run. Matching counts do not prove identical cases. No official overall Decision Index has been measured for Jet. Full report

Show as table

v6.1 → v6.2 on the local holdout

914 fixed cases, full merged BF16 weights.

Jet v6.1Jet v6.2

Small changes; not statistically significant. Financial sentiment measures SEntFiN transfer, not FinEntity.

Examples

Real outputs recorded in the model's reference file (Jet V5, Qwen3-0.6B, calibrated). Pick a case to see the request and the typed answer.

Response JSON

For live inference, run the model locally or start the Hugging Face Space, which serves the earlier 0.6B release and may be paused on free hosting.

Run it

The v6.2 release is self-contained: merged bf16 weights plus the CUDA runtime.

hf download michaljach/jet --revision v6.2.0 --local-dir jet
cd jet && python -m pip install -r requirements.txt
echo '{"state":"I was charged twice this month.",
  "questions":{"billing":{"type":"noul",
  "instructions":"Is this a billing issue?"}}}' | python jet.py