---
title: models (v1.4)
description: API reference for qiskit.providers.models in qiskit v1.4
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit/1.4/providers_models
---

# Backend Objects

`qiskit.providers.models`

Qiskit schema-conformant objects used by the backends and providers.

## Classes

|                                                                                                                                                                               |                                                                              |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
| [`BackendConfiguration`](/docs/api/qiskit/1.4/qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")(\*args, \*\*kwargs)                | Backwards compatibility shim representing an abstract backend configuration. |
| [`BackendProperties`](/docs/api/qiskit/1.4/qiskit.providers.models.BackendProperties "qiskit.providers.models.BackendProperties")(backend\_name, ...)                         | Class representing backend properties                                        |
| [`BackendStatus`](/docs/api/qiskit/1.4/qiskit.providers.models.BackendStatus "qiskit.providers.models.BackendStatus")(backend\_name, backend\_version, ...)                   | Class representing Backend Status.                                           |
| [`QasmBackendConfiguration`](/docs/api/qiskit/1.4/qiskit.providers.models.QasmBackendConfiguration "qiskit.providers.models.QasmBackendConfiguration")(backend\_name, ...)    | Class representing an OpenQASM 2.0 Backend Configuration.                    |
| [`PulseBackendConfiguration`](/docs/api/qiskit/1.4/qiskit.providers.models.PulseBackendConfiguration "qiskit.providers.models.PulseBackendConfiguration")(backend\_name, ...) | Static configuration state for an OpenPulse enabled backend.                 |
| [`UchannelLO`](/docs/api/qiskit/1.4/qiskit.providers.models.UchannelLO "qiskit.providers.models.UchannelLO")(q, scale)                                                        | Class representing a U Channel LO                                            |
| [`GateConfig`](/docs/api/qiskit/1.4/qiskit.providers.models.GateConfig "qiskit.providers.models.GateConfig")(name, parameters, qasm\_def\[, ...])                             | Class representing a Gate Configuration                                      |
| [`PulseDefaults`](/docs/api/qiskit/1.4/qiskit.providers.models.PulseDefaults "qiskit.providers.models.PulseDefaults")(qubit\_freq\_est, meas\_freq\_est, ...)                 | Description of default settings for Pulse systems.                           |
| [`Command`](/docs/api/qiskit/1.4/qiskit.providers.models.Command "qiskit.providers.models.Command")(name\[, qubits, sequence])                                                | Class representing a Command.                                                |
| [`JobStatus`](/docs/api/qiskit/1.4/qiskit.providers.models.JobStatus "qiskit.providers.models.JobStatus")(job\_id, status, status\_msg, \*\*kwargs)                           | Model for JobStatus.                                                         |
| [`GateProperties`](/docs/api/qiskit/1.4/qiskit.providers.models.GateProperties "qiskit.providers.models.GateProperties")(qubits, gate, parameters, ...)                       | Class representing a gate's properties                                       |
| [`Nduv`](/docs/api/qiskit/1.4/qiskit.providers.models.Nduv "qiskit.providers.models.Nduv")(date, name, unit, value)                                                           | Class representing name-date-unit-value                                      |