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Lev1 3.7B vs Celeris-1 Decision

Lev1 3.7B and Celeris-1 Decision have no measured difference in accuracy, calibration or cost in our data yet.

SpecLev1 3.7BCeleris-1 Decision
ProvidertheavivCeleris
Decision Index score38.6—
Calibration error (ECE)0.058—
Median latency (p50)29 ms—
Cost per 1,000 decisions—$0.0080
Parameters4B—
Open weightsYesNo
Question typesChoice (one of N options), Score (ordered rubric), Yes / noChoice (one of N options), Score (ordered rubric), Yes / no
MechanismDecoder LM with a decision readoutDiffusion LM
Licenseapache-2.0proprietary

FAQ

Is Lev1 3.7B or Celeris-1 Decision more accurate?

At least one of the two has no Jev Decision Index score yet, so their accuracy cannot be compared here.

Which is better calibrated, Lev1 3.7B or Celeris-1 Decision?

No calibration difference between Lev1 3.7B and Celeris-1 Decision is recorded yet.

Is Lev1 3.7B or Celeris-1 Decision cheaper per 1,000 decisions?

A hosted price is not recorded for both models; open-weight models cost the compute you run them on.

Cost per 1,000 decisions assumes 200 input tokens per decision. Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.