# Modeling FAQ
URL: https://docs.datarobot.com/en/docs/classic-ui/modeling/general-modeling-faq.html

# Modeling FAQ

The following addresses questions and answers about modeling in general and then more specifically about building models and using model insights.

## General modeling

## Build models

**SaaS:**
What is the difference between prediction and modeling servers?
Modeling servers power all the creation and model analysis done from the UI and from the R and Python clients. Prediction servers are used solely for making predictions and handling prediction requests on deployed models.

**Self-Managed:**
What is the difference between prediction and modeling servers?
Modeling servers power all the creation and model analysis done from the UI and from the R and Python clients. Modeling worker resources are reported in the
Resource Monitor
. Prediction servers are used solely for making predictions and handling prediction requests on deployed models.


## Model insights

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