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Celeris-1 Decision vs Matilda Jev v1.5

Celeris-1 Decision and Matilda Jev v1.5 have no measured difference in accuracy, calibration or cost in our data yet.

SpecCeleris-1 DecisionMatilda Jev v1.5
ProviderCelerisMaincode
Decision Index score—59.2
Calibration error (ECE)—0.077
Median latency (p50)—89 ms
Cost per 1,000 decisions$0.0080—
Parameters—26B
Open weightsNoYes
Question typesChoice (one of N options), Score (ordered rubric), Yes / noChoice (one of N options), Score (ordered rubric), Yes / no
MechanismDiffusion LMDecoder LM with a decision readout
Licenseproprietaryapache-2.0

FAQ

Is Celeris-1 Decision or Matilda Jev v1.5 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, Celeris-1 Decision or Matilda Jev v1.5?

No calibration difference between Celeris-1 Decision and Matilda Jev v1.5 is recorded yet.

Is Celeris-1 Decision or Matilda Jev v1.5 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.