JEV / SYSTEM ONE
Uses the Jev decision playground
Send model, state and keyed Choice, Score or Noul questions to /v1/systemone. This service calls OpenRouter’s Decisions endpoint, validates answers and settles the shared web, API and evaluation credit balance.
SPAN / NOUL
How it differs from Span
Span accepts only Noul behavior questions and requires text or a specific input/output conversation object. This model also accepts Choice and Score questions, with text, generic JSON objects, or arrays as state. Use the Jev playground for this broader decision contract.
Three structured answer types
Choice returns a named option and its probability distribution. Score returns a value on an ordered scale with probabilities. Noul returns the probability of a yes/no condition. Multiple questions share the same state.
choicescorenoul
Provider context: 65,536 tokens. This service accepts up to 8 questions, 2–255 Choice options and 2–10 ordered Score levels. Text plus questions must fit 32 KiB. Add up to 4 PNG, JPEG or WebP images: 4 MiB and 16 MP each, 8 MiB total, 13 MiB for the complete request.
Uses OpenRouter’s Decisions endpoint. Published context is the provider maximum; platform request limits still apply.
Input and output credits
Upstream input is $0.15 per million tokens; output is free. Web, API and evaluation charge 2200 credits per million actual input tokens, including questions and processed images, rounded up per successful request with a minimum of 1 credit ($0.0001). Failed calls release the reservation.
max(1, ceil(input_tokens × 2200 / 1,000,000))
A successful request with 1,000 input tokens costs 3 credit; 5,000 input tokens cost 11 credits. Output tokens add no charge. Failed calls release the credit reservation.
Verified October 10, 2026 through OpenRouter: text, object and array state, all three answer types, 8 mixed questions, 255 Choice options, 10 Score levels, Noul without criteria and a long-state tail marker. Contrasting red/blue images and four-image requests also passed. Reported usage fits the reserved credit budget. These checks verify the API contract, not accuracy or a latency SLA.