Amanai Docs

System One

Jev 1.13 returns typed decisions and probabilities from a state and a set of questions.

TypeSafe AI · Jev 1.13

Native structured evaluation · amanai/jev-1.13

Availability

Use POST /v1/systemone with model amanai/jev-1.13 and an Amanai API key. The vendor is TypeSafe AI. System One is a separate API surface, not a chat, embeddings, rerank, or media model.

Use the native contract. Send state and questions; do not send chat messages or expect a generated text completion.

Native contract

A request pairs a state (text or structured JSON object) with named questions. Each question declares its output type and an instruction. The response preserves question IDs under answers.

Question type	Criteria	Answer
`noul`	Optional descriptions for true and false.	A `noul` value from 0 to 1.
`choice`	2–64 named options.	Selected option, confidence, and option probabilities.
`score`	2–64 ordered labels.	Numeric score, confidence, and label probabilities.

Send 1–64 questions per request. Question IDs are stable keys in the response.

Request example

Authenticate with a Bearer API key and send JSON to POST /v1/systemone.

bash

curl https://api.amanai.dev/v1/systemone \
  -H "Authorization: Bearer $AMANAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "amanai/jev-1.13",
  "state": "My payments have failed for three days.",
  "questions": {
    "urgent": {
      "type": "noul",
      "instructions": "Is this urgent?"
    },
    "team": {
      "type": "choice",
      "instructions": "Which team should handle it?",
      "criteria": {
        "billing": "Payment issues",
        "technical": "Product bugs"
      }
    },
    "frustration": {
      "type": "score",
      "instructions": "How frustrated is the customer?",
      "criteria": ["Calm", "Frustrated", "Angry"]
    }
  }
}'

Response example

Example response; probabilities and token counts vary with the request.

bash

{
  "model": "amanai/jev-1.13",
  "answers": {
    "urgent": { "type": "noul", "noul": 0.96 },
    "team": {
      "type": "choice",
      "choice": "billing",
      "confidence": 0.9,
      "probabilities": { "billing": 0.94, "technical": 0.06 }
    },
    "frustration": {
      "type": "score",
      "score": 1.2,
      "confidence": 0.7,
      "legend": { "0": "Calm", "1": "Frustrated", "2": "Angry" },
      "probabilities": { "0": 0, "1": 0.8, "2": 0.2 }
    }
  },
  "usage": { "input_tokens": 100, "output_tokens": 30 }
}

usage records input and output tokens even though this model has no customer charge.

Billing

amanai/jev-1.13 costs 0 credits per request while the offer is active. Currently free for a limited time while the upstream free offering remains available. Free access is not guaranteed and future requests may be priced differently. Token usage is still reported. See Billing & pricing for the System One rate.