# Discovering and Selecting Models Through the API

Use the model discovery API to see which model identifiers are currently available. A name ending in -preview identifies an experimental model. For production applications, choose a model from the Active Models catalog and use its LTS major-version identifier when one is available.

For support periods, retirement dates, and migration guidance, consult the lifecycle pages in Cloud Docs:

Model Lifecycle
Retirement and Migration
Scheduled for Retirement
Decommissioned Models

# Quick reference

What you need	Where to look
Available model identifiers	Model discovery API or Active Models
Experimental models	Names ending in `-preview`; see Preview Models
LTS status and support periods	Model Lifecycle
Retirement dates and migration	Retirement and Migration
No longer available models	Decommissioned Models

maas model governance api