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reflex 4B vs Cloudflare clef

reflex 4B and Cloudflare clef have no measured difference in accuracy, calibration or cost in our data yet.

Specreflex 4BCloudflare clef
Providerkshetrajna12Cloudflare
Decision Index score—53.1
Calibration error (ECE)—0.040
Median latency (p50)—102 ms
Cost per 1,000 decisions——
Parameters—28B
Open weightsYesYes
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 readoutDecoder LM with a decision readout
License—apache-2.0

FAQ

Is reflex 4B or Cloudflare clef 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, reflex 4B or Cloudflare clef?

No calibration difference between reflex 4B and Cloudflare clef is recorded yet.

Is reflex 4B or Cloudflare clef 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.