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Cloudflare clef vs matilda-jev-v1

Cloudflare clef and matilda-jev-v1 have no measured difference in accuracy, calibration or cost in our data yet.

SpecCloudflare clefmatilda-jev-v1
ProviderCloudflareMaincode
Decision Index score53.1—
Calibration error (ECE)0.040—
Median latency (p50)102 ms—
Cost per 1,000 decisions——
Parameters28B26B
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
Licenseapache-2.0apache-2.0

FAQ

Is Cloudflare clef or matilda-jev-v1 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, Cloudflare clef or matilda-jev-v1?

No calibration difference between Cloudflare clef and matilda-jev-v1 is recorded yet.

Is Cloudflare clef or matilda-jev-v1 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.