Specialized Models

Decision Model API Reference

Call POST /compatible-mode/v1/systemone to use the QwenCloud decision model (decision-model-preview), which returns classification, scoring, and yes/no decisions with full probability distributions and confidence in a single forward pass, without generating text.

POST

/compatible-mode/v1/systemone

cURL

curl -sS -X POST https://trial.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/systemone \
  -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "decision-model-preview",
    "state": {"ticket_id": "T-1001", "content": "Payment not received 24 hours after order, user unable to use core service."},
    "questions": {
      "department": {"type": "choice", "instructions": "Which team should handle this?",
                     "criteria": {"billing": "Payment, refund and billing issues", "technical": "Product faults and integration issues"}},
      "escalate":   {"type": "noul",  "instructions": "Should on-call staff be notified immediately?"},
      "severity":   {"type": "score", "instructions": "How severe is this issue?",
                     "criteria": ["Minor issue, no functional impact", "Some features affected, workaround available",
                                  "Core feature unavailable, no workaround", "Severe business or security impact"]}
    }
  }'

{
  "model": "decision-model-preview",
  "request_id": "7b986c65-b223-9341-b5f0-b988e27ecaac",
  "answers": {
    "department": {
      "type": "choice",
      "choice": "billing",
      "confidence": 0.88,
      "probabilities": {
        "billing": 0.94,
        "technical": 0.06
      }
    },
    "escalate": {
      "type": "noul",
      "noul": 0.99
    },
    "severity": {
      "type": "score",
      "score": 2.25,
      "confidence": 0.91,
      "legend": {
        "0": "Minor issue, no functional impact",
        "1": "Some features affected, workaround available",
        "2": "Core feature unavailable, no workaround",
        "3": "Severe business or security impact"
      },
      "probabilities": {
        "0": 0,
        "1": 0.01,
        "2": 0.73,
        "3": 0.26
      }
    }
  },
  "usage": {
    "input_tokens": 125
  },
  "latency_ms": 52.9
}

Prerequisites

You have created an API key and configured it as the environment variable DASHSCOPE_API_KEY. See Configure an API key as an environment variable.

Request

Protocol: TypeSafe System One (POST /compatible-mode/v1/systemone) A single request carries a business state and several typed questions (choice / noul / score). The model returns the decision result and probability distribution for each question in a single forward pass, with choice and score additionally returning confidence, without generating text, so latency and cost are independent of output length.

decision-model-preview does not support streaming, Function Calling, web search, or structured output. The model output is a structured decision result (probability distributions and confidence), not generated text.

Authorizations

string

header

required

Body

application/json

enum<string>

required

Model name. Use decision-model-preview.

Available options:decision-model-preview

string

required

The business state to make decisions on: ticket text, conversation, or structured object (objects are serialized before being sent to the model).

object

required

Question table. The key is a caller-defined question id; the value is a question object.

Response

200-application/json

string

Model name echoed back.

string

Request ID for troubleshooting.

object

Answer table. Keys correspond to the question ids in the request.

object

Usage information.

Show child attributes

integer

Number of input tokens.

number

Server-side latency in milliseconds.

cURL

curl -sS -X POST https://trial.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/systemone \
  -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "decision-model-preview",
    "state": {"ticket_id": "T-1001", "content": "Payment not received 24 hours after order, user unable to use core service."},
    "questions": {
      "department": {"type": "choice", "instructions": "Which team should handle this?",
                     "criteria": {"billing": "Payment, refund and billing issues", "technical": "Product faults and integration issues"}},
      "escalate":   {"type": "noul",  "instructions": "Should on-call staff be notified immediately?"},
      "severity":   {"type": "score", "instructions": "How severe is this issue?",
                     "criteria": ["Minor issue, no functional impact", "Some features affected, workaround available",
                                  "Core feature unavailable, no workaround", "Severe business or security impact"]}
    }
  }'

{
  "model": "decision-model-preview",
  "request_id": "7b986c65-b223-9341-b5f0-b988e27ecaac",
  "answers": {
    "department": {
      "type": "choice",
      "choice": "billing",
      "confidence": 0.88,
      "probabilities": {
        "billing": 0.94,
        "technical": 0.06
      }
    },
    "escalate": {
      "type": "noul",
      "noul": 0.99
    },
    "severity": {
      "type": "score",
      "score": 2.25,
      "confidence": 0.91,
      "legend": {
        "0": "Minor issue, no functional impact",
        "1": "Some features affected, workaround available",
        "2": "Core feature unavailable, no workaround",
        "3": "Severe business or security impact"
      },
      "probabilities": {
        "0": 0,
        "1": 0.01,
        "2": 0.73,
        "3": 0.26
      }
    }
  },
  "usage": {
    "input_tokens": 125
  },
  "latency_ms": 52.9
}

Decision Model API Reference - QwenCloud

​Prerequisites

​Request

Authorizations

Body

Response

Prerequisites

Request