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yarrow-forecast vs Celeris-1 Decision

yarrow-forecast and Celeris-1 Decision have no measured difference in accuracy, calibration or cost in our data yet.

Specyarrow-forecastCeleris-1 Decision
ProviderYarrowLabCeleris
Decision Index score——
Calibration error (ECE)——
Median latency (p50)——
Cost per 1,000 decisions—$0.0080
Parameters27B—
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
Licensecc-by-nc-4.0proprietary

FAQ

Is yarrow-forecast 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, yarrow-forecast or Celeris-1 Decision?

No calibration difference between yarrow-forecast and Celeris-1 Decision is recorded yet.

Is yarrow-forecast 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.