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.
A typed-decision layer for Google's DiffusionGemma, from David Villalón at Maisa AI. It compiles a request into a small answer canvas, runs one denoising read on patched vLLM and reads the probabilities of the allowed labels, for text, images and images offered as options.
Decides
choice, classify, route
choice, score, noul
Architecture
gpt-6-luna
djev
Fine-tuned from
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google/diffusiongemma-26b-a4b-it
License
proprietary
apache-2.0
Availability
Hosted API
Open weights + hosted API
Hosted by
OpenAI
Maisa
Input price
—
$0.035/MTok
Decision accuracy
—
—
Calibration error
—
—
Valid action rate
—
—
Median latency
—
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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 decisions-api and djev?
decisions-api is from OpenAI and djev from Maisa. decisions-api is only available as a hosted API; djev has open weights and a hosted API. Both answer choice questions. Only decisions-api answers classify and route. Only djev answers score and noul. decisions-api is licensed proprietary; djev, apache-2.0.
Which is more accurate, decisions-api or djev?
Neither publishes an accuracy figure. Test both on your own labelled examples.
Which is cheaper, decisions-api or djev?
decisions-api: Hosted, price not published. djev: $0.035 / $0 per 1M, or free to self-host. Open weights cost nothing per call beyond your own hardware.
Can I run decisions-api or djev locally?
djev yes — systemone pull maisa/djev downloads its weights. The other is only served as a hosted API.
