A family of open System One models by Mark Marosi that softmax option-letter logits at an answer slot: decider-0.8b, 2b, 4b and 35b-a3b on Qwen3.5 bases, decider-12b on Gemma-4-12B-it, and training-free readouts of larger chat models. This page carries decider-2b v11.
Telnyx's hosted decision models, in beta on Telnyx Inference. One request carries shared state and up to 64 typed questions (choice, yes/no noul, ordered score) and returns a probability per option, with no generated text, on a TypeSafe-compatible /v1/systemone route.
Decides
choice, score, noul, classify, route
choice, score, noul, classify, route
Architecture
decider
telnyx-decision
Fine-tuned from
qwen/qwen3.5-2b-base
—
License
apache-2.0
proprietary
Availability
Open weights
Hosted API
Hosted by
—
Telnyx
Input price
—
$0.035/MTok
Decision accuracy
75.2%
—
Calibration error
—
—
Valid action rate
—
—
Median latency
—
—
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 decider and decision-flash?
decider is from Mapika and decision-flash from Telnyx. decider has open weights you can download and run; decision-flash is only available as a hosted API. Both answer choice, score, noul, classify and route questions. decider is licensed apache-2.0; decision-flash, proprietary.
Which is more accurate, decider or decision-flash?
Only decider publishes an accuracy figure (75.2% on Decider regression set, 28 held-out tasks (decider-2b v11)); decision-flash does not, so there is no comparison to make without your own test.
Which is cheaper, decider or decision-flash?
decider: Free (open weights). decision-flash: $0.035 / $0 per 1M. Open weights cost nothing per call beyond your own hardware.
Can I run decider or decision-flash locally?
decider yes — systemone pull mapika/decider downloads its weights. The other is only served as a hosted API.
