utility-models.md

title	Utility models
intro	Utility models power background {% data variables.product.prodname_copilot_short %} features.
versions	feature copilot
contentType	concepts

Utility models are a small set of models that are automatically enabled for all {% data variables.product.prodname_copilot %} users across every plan. They power background features such as the generation of commit messages or chat session titles, and they apply across {% data variables.product.prodname_copilot_short %} surfaces: in IDEs, on {% data variables.product.github %}, and in {% data variables.copilot.copilot_cli_short %}.

How do utility models work?

Utility models:

• Are not visible in the model picker and cannot be selected by users directly.
• Cannot be disabled by organization or enterprise administrators, except by disabling {% data variables.product.prodname_copilot_short %} completely.
• Do not consume premium request units or tokens for usage-based billing, and do not appear as a billed line item in usage reports.
• Are subject to per-user rate limits.

These characteristics ensure that {% data variables.product.prodname_copilot_short %} features work smoothly regardless of your model policies and billing controls.

List of utility models

Utility models are typically selected for being fast and lightweight. {% data reusables.copilot.utility-models %}