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jeff vs Perplexity: Decider Latest

jeff and Perplexity: Decider Latest have no measured difference in accuracy, calibration or cost in our data yet.

SpecjeffPerplexity: Decider Latest
Providerlogan-markewichPerplexity
Decision Index score6.2—
Calibration error (ECE)0.097—
Median latency (p50)22 ms—
Cost per 1,000 decisions—$0.0040
Parameters576M—
Open weightsYes—
Question typesChoice (one of N options), Score (ordered rubric), Yes / no—
MechanismSpan encoder (GLiNER family)—
License——

FAQ

Is jeff or Perplexity: Decider Latest 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, jeff or Perplexity: Decider Latest?

No calibration difference between jeff and Perplexity: Decider Latest is recorded yet.

Is jeff or Perplexity: Decider Latest 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.