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drex-dlm vs Nace.AI Drex v1.5

drex-dlm and Nace.AI Drex v1.5 have no measured difference in accuracy, calibration or cost in our data yet.

Specdrex-dlmNace.AI Drex v1.5
ProviderNace.AINace.AI
Decision Index score—49.7
Calibration error (ECE)—0.090
Median latency (p50)—54 ms
Cost per 1,000 decisions—$0.010
Parameters8B9B
Open weightsYesYes
Question typesChoice (one of N options), Score (ordered rubric), Yes / noChoice (one of N options), Score (ordered rubric), Yes / no
MechanismEncoder classifierDecoder LM with a decision readout
Licensecc-by-nc-4.0nace-ai-open-rail-m

FAQ

Is drex-dlm or Nace.AI Drex 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, drex-dlm or Nace.AI Drex v1.5?

No calibration difference between drex-dlm and Nace.AI Drex v1.5 is recorded yet.

Is drex-dlm or Nace.AI Drex 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.