---
search:
  tags:
    - Operations
    - POST
seo:
  description: >-
    Questions + state generates a model or reuses the account's disposable
    questions cache. Every… Reference for the POST /v1/systemone endpoint in the
    aityx API.
sidebar:
  label: Execute questions or a portable model
  badge: POST
title: Execute questions or a portable model
type: openapi-operation
---
Questions + state generates a model or reuses the account's disposable questions
cache. Every such call uses System Two pricing, including cache hits with no
provider call. State is never part of the model-cache key and answers are fresh.
A complete model + matching JSON state executes deterministically at System One
rates. Required values that cannot be established from evidence produce an error.
Execution succeeds synchronously; returned decision data belongs to the client.

`POST /v1/systemone`