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Cloudflare clef-flash vs djev-spark

Cloudflare clef-flash and djev-spark have no measured difference in accuracy, calibration or cost in our data yet.

SpecCloudflare clef-flashdjev-spark
ProviderCloudflaremmastrac
Decision Index score47.6—
Calibration error (ECE)0.025—
Median latency (p50)53 ms—
Cost per 1,000 decisions——
Parameters10B—
Open weightsYesYes
Question typesChoice (one of N options), Score (ordered rubric), Yes / no—
MechanismDecoder LM with a decision readoutDiffusion LM
Licenseapache-2.0—

FAQ

Is Cloudflare clef-flash or djev-spark 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-flash or djev-spark?

No calibration difference between Cloudflare clef-flash and djev-spark is recorded yet.

Is Cloudflare clef-flash or djev-spark 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.