An open Jev-style decision model by Andy Zhang: a LoRA adapter on Gemma 4 26B-A4B (also on Gemma 4 12B) that reads a state and returns a temperature-calibrated probability for every option of a yes/no, choice or score question in one forward pass.
Fastino's open-weight decision model. A DeBERTa-v3-large encoder that scores label sets supplied at runtime, answers single-label, multi-label, yes/no and ordinal questions in one pass, and extracts spans and relations.
Decides
choice, score, noul
choice, score, noul, classify, extract, route
Architecture
ajev
gliner2
Fine-tuned from
google/gemma-4-26b-a4b-it
fastino/gliner2-large-v1
License
apache-2.0
apache-2.0
Availability
Open weights
Open weights + hosted API
Hosted by
—
Fastino
Input price
—
—
Decision accuracy
—
60.2%
Calibration error
—
—
Valid action rate
—
—
Median latency
49 ms
38.3 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 ajev and gliner2-5-decide?
ajev is from Andy Zhang and gliner2-5-decide from Fastino Labs. ajev has open weights you can download and run; gliner2-5-decide has open weights and a hosted API. Both answer choice, score and noul questions. Only gliner2-5-decide answers classify, extract and route. gliner2-5-decide is the smaller model, at 340M parameters to 26B.
Which is more accurate, ajev or gliner2-5-decide?
Only gliner2-5-decide publishes an accuracy figure (60.2% on Fastino fast-decisions suite (17 datasets)); ajev does not, so there is no comparison to make without your own test.
Which is cheaper, ajev or gliner2-5-decide?
ajev: Free (open weights). gliner2-5-decide: Hosted, price not published, or free to self-host. Open weights cost nothing per call beyond your own hardware.
Which is faster, ajev or gliner2-5-decide?
By their publishers’ figures, gliner2-5-decide answers in about 38.3 ms at the median and ajev in about 49 ms — measured on different hardware, so treat it as a rough guide.
Can I run ajev or gliner2-5-decide locally?
Yes, both: systemone pull andy-zhang/ajev and systemone pull fastino-labs/gliner2-5-decide download the weights.
