ReferenceAsk
D

Drex v1.5

Drex v1.5, a decision model from DeepInfra.
model: "drex-v1.5"
Nace.AI·served viaDeepInfra·Released October 2026
Pricing
Input
$0.040 / 1M
Specifications
Context window
131,072 tokens
Released
October 2026
Model string
nace-ai/drex-v1.5
Use this model
const { answers } = await mindstudio.evaluateDecision({
  state: "Customer: My order never arrived. Cancel my account.",
  questions: {
    is_churn_risk: { type: "noul", instructions: "Is this customer likely to leave?" },
    category: {
      type: "choice",
      instructions: "What is this message about?",
      criteria: { shipping: "Delivery problems", billing: "Charges and refunds", other: null },
    },
  },
  decisionModelOverride: { model: "drex-v1.5" },
});
// answers.is_churn_risk.noul → probability 0..1
// answers.category.choice → 8, plus per-option probabilities