A Thai-and-English System One model. Qwen3.5-0.8B continued-pretrained on about 5B Thai tokens, its language-model head replaced by a 256-way slot head (slot 255 abstains), trained on 2–3M decision examples and temperature-calibrated per question type.
One of the earliest Jev-shaped scorers. A sequence-classification head on Qwen3.5-4B-Base scores each (state, question, option) triple and softmaxes per question. Non-commercial licence.
Decides
choice, score, noul, classify, route
choice, score, noul, classify
Architecture
openthai
scorer
Fine-tuned from
qwen/qwen3.5-0.8b-base
qwen/qwen3.5-4b-base
License
apache-2.0
cc-by-nc-4.0
Availability
Open weights
Open weights
Hosted by
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Input price
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Decision accuracy
74.3%
70.7%
Calibration error
—
0.044
Valid action rate
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Median latency
40 ms
112 ms
p95 latency
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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 openthai-systemone and system-one-qwen3-5-4b-scorer?
openthai-systemone is from iApp Technology and system-one-qwen3-5-4b-scorer from pngwn. Both have open weights you can download and run. Both answer choice, score, noul and classify questions. Only openthai-systemone answers route. openthai-systemone is the smaller model, at 800M parameters to 4.0B. openthai-systemone is licensed apache-2.0; system-one-qwen3-5-4b-scorer, cc-by-nc-4.0.
Which is more accurate, openthai-systemone or system-one-qwen3-5-4b-scorer?
They report on different suites — openthai-systemone 74.3% on Bespoke public subsets (13, macro average), system-one-qwen3-5-4b-scorer 70.7% on author-reported — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, openthai-systemone or system-one-qwen3-5-4b-scorer?
openthai-systemone: Free (open weights). system-one-qwen3-5-4b-scorer: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Which is faster, openthai-systemone or system-one-qwen3-5-4b-scorer?
By their publishers’ figures, openthai-systemone answers in about 40 ms at the median and system-one-qwen3-5-4b-scorer in about 112 ms — measured on different hardware, so treat it as a rough guide.
Can I run openthai-systemone or system-one-qwen3-5-4b-scorer locally?
Yes, both: systemone pull iapp-technology/openthai-systemone and systemone pull pngwn/system-one-qwen3-5-4b-scorer download the weights.
