---
title: is_fidelity_model (latest version)
description: API reference for qiskit_noise_learning.models.is_fidelity_model in the latest version of qiskit-noise-learning
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit-noise-learning/generated/models-is-fidelity-model
---

# qiskit\_noise\_learning.models.is\_fidelity\_model

`qiskit_noise_learning.models.is_fidelity_model(model: object) → bool`

[GitHub](https://github.com/Qiskit/qiskit-noise-learning/tree/stable/0.1/qiskit_noise_learning/models/utils.py)

Whether an object is a [`LinearMap`](/docs/api/qiskit-noise-learning/generated/math-linear-map "qiskit_noise_learning.math.LinearMap") with a [`LogFidelitySpace`](/docs/api/qiskit-noise-learning/generated/models-log-fidelity-space "qiskit_noise_learning.models.LogFidelitySpace") output space.

**Parameters**

**model** – The object to check.

**Returns**

`True` if `model` is a [`LinearMap`](/docs/api/qiskit-noise-learning/generated/math-linear-map "qiskit_noise_learning.math.LinearMap") whose output space is a [`LogFidelitySpace`](/docs/api/qiskit-noise-learning/generated/models-log-fidelity-space "qiskit_noise_learning.models.LogFidelitySpace"), otherwise `False`.