> ## Documentation Index
> Fetch the complete documentation index at: https://arize-ax.mintlify.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Tags
> Learn how to create, apply, and use tags with entities in AX
Tags are a lightweight way for you to organize and label your entities across the Arize Platform. You can use tags to:
* Describe source (`from-prod`, `EHR-record`)
* Encode purpose (`ab-test`, `regression-test`)
* Indicate readiness (`golden`, `deprecated`)
* Group by config (`threshold-0.85`, `cohort_5`)
Tags live at the **Space** level, under Space Settings. They can be reused across entities that belong to that space. They include a name as well as optionally a color and description.
Tags are supported on:
* Annotation configs
* Dashboards
* Datasets
* Experiments
* Monitors
* Projects
## Create Tags
Tags can be created either from the settings page, or from the tags for each supported entity.
To create a tag from the settings page, select **Settings -> Tags**, then select **+ New Tag**. Give the tag a name, and optionally set the description and tag color. Then select **Create Tag**.
To create a new tag from an entity, select the tag icon, then select **New Tag**. Fill in the tag details. This will automatically apply the new tag to the entity.
## Use Tags
Tags can be assigned to entities, then used to filter and search based on the tag.
### Set Tags
The Tags Selector allows you to add and remove tags from entities in the platform.
### Filter by Tag
You can hover over a tag to filter a list of entities by that tag
