OpenAI's decision endpoint, announced at DevDay 2026. It focuses GPT-6 Luna on developer-defined questions that have a finite set of predefined answers, with text or image context, for classification, routing and an agent's next action.
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.
Decides
choice, classify, route
choice, score, noul, classify, route
Architecture
gpt-6-luna
laya
Fine-tuned from
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answerdotai/modernbert-large
License
proprietary
apache-2.0
Availability
Hosted API
Open weights
Hosted by
OpenAI
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Input price
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Decision accuracy
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Calibration error
—
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Valid action rate
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Median latency
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39.5 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 decisions-api and laya?
decisions-api is from OpenAI and laya from Convai Innovations. decisions-api is only available as a hosted API; laya has open weights you can download and run. Both answer choice, classify and route questions. Only laya answers score and noul. decisions-api is licensed proprietary; laya, apache-2.0.
Which is more accurate, decisions-api or laya?
Neither publishes an accuracy figure. Test both on your own labelled examples.
Which is cheaper, decisions-api or laya?
decisions-api: Hosted, price not published. laya: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Can I run decisions-api or laya locally?
laya yes — systemone pull convai-innovations/laya downloads its weights. The other is only served as a hosted API.
