reflex 4B

kshetrajna12Decision modelOpen weights

reflex 4B by kshetrajna12 is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text.

Pricing

No hosted price is listed. The weights are open: the cost is your own compute.

Specifications

Provider: kshetrajna12
Parameters: —
Released: Sep 2026
Open weights: Yes
Question types: Choice (one of N options), Score (ordered rubric), Yes / no
Mechanism: Decoder LM with a decision readout
Backbone: —
Jev-compatible request: Yes
Runs on CPU: —
License: —

Benchmarks

Benchmark Heaven JevBench (Capability): 59.0
DecisionBenchECE 0.117: 0.631

Compare reflex 4B with…

reflex 4B vs amos-1-large—/1M in reflex 4B vs amos-1-medium—/1M in reflex 4B vs Celeris-1 Decision$0.04/1M in reflex 4B vs ScaleDown Classify-1$0.04/1M in reflex 4B vs Cloudflare clef—/1M in reflex 4B vs Cloudflare clef-flash—/1M in

FAQ

How much does reflex 4B cost?

reflex 4B has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can reflex 4B answer?

reflex 4B answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.

Is reflex 4B well calibrated?

No calibration measurement for reflex 4B is recorded yet.

Is reflex 4B open weight, and can it run on a CPU?

Yes, reflex 4B has open weights.

Data as of 2026-10-14. Source: Metatext decision-model catalogue, 2026-10-14 (DecisionBench, Benchmark Heaven JevBench). Pricing is per 1M tokens (USD); confirm with the provider before production use.