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.
A ModernBERT-large encoder with an option-marker head. Premise and options are packed into one sequence and each option's marker is scored in a single bidirectional pass; version 1.2 makes the scoring order-invariant.
Decides
choice, score, noul, classify, route
choice, score, noul, classify
Architecture
openthai
von
Fine-tuned from
qwen/qwen3.5-0.8b-base
answerdotai/modernbert-large
License
apache-2.0
apache-2.0
Availability
Open weights
Open weights
Hosted by
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Input price
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Decision accuracy
74.3%
63.9%
Calibration error
—
0.045
Valid action rate
—
—
Median latency
40 ms
18 ms
p95 latency
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Evaluation suite
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 von?
openthai-systemone is from iApp Technology and von from wfzyx. Both have open weights you can download and run. Both answer choice, score, noul and classify questions. Only openthai-systemone answers route. von is the smaller model, at 395M parameters to 800M.
Which is more accurate, openthai-systemone or von?
They report on different suites — openthai-systemone 74.3% on Bespoke public subsets (13, macro average), von 63.9% on JevBench public standard tier — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, openthai-systemone or von?
openthai-systemone: Free (open weights). von: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Which is faster, openthai-systemone or von?
By their publishers’ figures, von answers in about 18 ms at the median and openthai-systemone in about 40 ms — measured on different hardware, so treat it as a rough guide.
Can I run openthai-systemone or von locally?
Yes, both: systemone pull iapp-technology/openthai-systemone and systemone pull wfzyx/von download the weights.
