An open-weights System One model from Convai Innovations. A fully fine-tuned ModernBERT-large encoder with a from-scratch decision head that scores one marker per option and answers every question in a single 33–39 ms pass. Runs on your own CPU or GPU.
Upstage's structured decision model, a System One endpoint on Solar Mini 4. Returns a choice, a score or a yes/no answer with a probability read from the model, in one forward pass, on the same /v1/systemone schema as Jev.
Decides
choice, score, noul, classify, route
choice, score, noul, classify, route
Architecture
laya
solar
Fine-tuned from
answerdotai/modernbert-large
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License
apache-2.0
proprietary
Availability
Open weights
Hosted API
Hosted by
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Upstage
Input price
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$0.10/MTok
Decision accuracy
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Calibration error
—
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Valid action rate
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Median latency
39.5 ms
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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 laya and solar-decide?
laya is from Convai Innovations and solar-decide from Upstage. laya has open weights you can download and run; solar-decide is only available as a hosted API. Both answer choice, score, noul, classify and route questions. solar-decide reads up to 512K tokens of state, against 512 tokens for laya. laya is licensed apache-2.0; solar-decide, proprietary.
Which is more accurate, laya or solar-decide?
Neither publishes an accuracy figure. Test both on your own labelled examples.
Which is cheaper, laya or solar-decide?
laya: Free (open weights). solar-decide: $0.1 / $0 per 1M. Open weights cost nothing per call beyond your own hardware.
Can I run laya or solar-decide locally?
laya yes — systemone pull convai-innovations/laya downloads its weights. The other is only served as a hosted API.
