HEAD TO HEAD

djev vs metask-jev

Q: Can I run djev or metask-jev locally?

Yes, both: systemone pull maisa/djev and systemone pull metask-lab/metask-jev download the weights.

Maisa: djev and Metask Lab: metask-jev, compared on what they decide, where they run, what they cost and what their publishers report.

The short version

djev has open weights and a hosted API; metask-jev has open weights you can download and run.
Both answer choice, score and noul questions.
Only metask-jev answers classify and route.
metask-jev is the smaller model, at 4.5B parameters to 26B.

Property	maisa/djev	metask-lab/metask-jev
Summary	A typed-decision layer for Google's DiffusionGemma, from David Villalón at Maisa AI. It compiles a request into a small answer canvas, runs one denoising read on patched vLLM and reads the probabilities of the allowed labels, for text, images and images offered as options.	Metask Lab's calibrated decision model in 16 languages. Qwen3.5-4B with a merged LoRA trained with the Nimble candidate-logit objective; one forward pass and a softmax over at most 26 answer-letter logits, with one temperature per question type.
Decides	choice, score, noul	choice, score, noul, classify, route
Architecture	djev	metask-jev
Fine-tuned from	google/diffusiongemma-26b-a4b-it	qwen/qwen3.5-4b
License	apache-2.0	apache-2.0
Availability	Open weights + hosted API	Open weights
Hosted by	Maisa	—
Input price	$0.035/MTok	—
Decision accuracy	—	80.1%
Calibration error	—	—
Valid action rate	—	—
Median latency	—	62.8 ms
p95 latency	—	—

Figures are from each model’s manifest; accuracy and latency are what the publishers report, on their own suites and hardware. Add a third model.

Questions

What is the difference between djev and metask-jev?

djev is from Maisa and metask-jev from Metask Lab. djev has open weights and a hosted API; metask-jev has open weights you can download and run. Both answer choice, score and noul questions. Only metask-jev answers classify and route. metask-jev is the smaller model, at 4.5B parameters to 26B.

Which is more accurate, djev or metask-jev?

Only metask-jev publishes an accuracy figure (80.1% on JevBench v1.2 public set (231 items) at 4,096 tokens, maker's run); djev does not, so there is no comparison to make without your own test.

Which is cheaper, djev or metask-jev?

djev: $0.035 / $0 per 1M, or free to self-host. metask-jev: Free (open weights). Open weights cost nothing per call beyond your own hardware.

Can I run djev or metask-jev locally?

Yes, both: systemone pull maisa/djev and systemone pull metask-lab/metask-jev download the weights.