# Starting a new model-based custom entity type

To start a new custom entity type:

1. On the **Custom Entity Types** page, click **Create Custom Entity Type**, then select **Model-based entity type**.

<figure><img src="https://3072847115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvOPn7KQptPWmS5iKg5P0%2Fuploads%2F0pDz8ojAlsYjPJpMI6OD%2FCustomEntityTypesCreateDropdown.png?alt=media&#x26;token=7a9416cb-e3e8-4905-9c32-667b966091e5" alt=""><figcaption><p>Custom entity type creation dropdown</p></figcaption></figure>

2. On the next panel, in the **Custom entity type name** field, provide a name for the custom entity type.
3. In the **Annotation guidelines** text area, provide instructions for how the model should identify values that you want to find. This is the first version of the model guidelines.

<figure><img src="https://3072847115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvOPn7KQptPWmS5iKg5P0%2Fuploads%2Fdzmcgt3OCIk3EQnYNtOg%2FCustomEntityTypeModelBasedNew.png?alt=media&#x26;token=57070927-3e9c-42a0-981e-a658d7b737d1" alt=""><figcaption><p>Panel to provide the name and initial guidelines for a model-based custom entity type</p></figcaption></figure>

4. Click **Next**.

Textual displays the **Test data setup** page.