---
title: Register external models
description: Register an external model package in the Model Registry. The Model Registry is an archive of your model packages where you can also deploy and share the packages.

---

#  Register external models {: #register-external-models }

{% include 'includes/reg-ext-model.md' %}

## Set an accuracy baseline {: #set-an-accuracy-baseline }

To set an accuracy baseline for external models (which enables target drift and challenger models when deployed), you must provide holdout data. This is because DataRobot cannot use the model to generate predictions that typically serve as a baseline, as the model is hosted in a remote prediction environment outside of the application. Provide holdout data when registering an external model package and specify the column containing predictions.
