Update 'model' setting description for default conversation selection (#63037)

Co-authored-by: Vanessa <vgrl@github.com>

Author: amrithss

content/copilot/reference/enterprise-administrators/enterprise-managed-settings.md

@@ -38,7 +38,7 @@ As an exception, the following keys are composed in the most restrictive directi
 | `permissions.deny` | Blocks specific operations | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} | {% octicon "x" aria-label="Not supported" %} |
 | `permissions.ask` | Requires a fresh human approval before specific operations can proceed | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} | {% octicon "x" aria-label="Not supported" %} |
 | `permissions.allow` | Permits specific operations to proceed without a prompt | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} | {% octicon "x" aria-label="Not supported" %} |
-| `model` | Sets auto model selection as the default for new conversations | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} |
+| `model` | Sets your preferred model as the default for new conversations | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "x" aria-label="Not supported" %} |
 | `enabledPlugins` | Enables or disables specific plugins by key | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} |
 | `extraKnownMarketplaces` | Adds plugin marketplaces that users can access | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} |
 | `strictKnownMarketplaces` | Restricts plugin installation to explicitly listed marketplaces | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} | {% octicon "check" aria-label="Supported" %} |
@@ -179,10 +179,11 @@ Restricts plugin installation to only the marketplaces explicitly defined by the
 
 ## model
 
-Sets auto model selection as the default for new conversations. See [AUTOTITLE](/copilot/concepts/models/auto-model-selection).
+Sets your preferred model as the default for new conversations. This lets you choose the default model that best fits your enterprise's workflows. Users can still select a different model on a per-conversation basis.
+* Set `model` to `"auto"` to use {% data variables.copilot.copilot_auto_model_selection_short %} as the default, so new sessions choose a model automatically unless the user specifies a different model on a per-conversation basis. See [AUTOTITLE](/copilot/concepts/models/auto-model-selection).
+* * Set `model` to a specific model and version to make that model the default for new conversations, for example `"kimi-k-3"`.
 
-* When you set `model` to `"auto"`, new sessions use Auto model unless the user specifies a different model on a per-conversation basis.
-* This key is overridable by enterprise team mapping. In your `{% data variables.copilot.managed_setting_file %}`, use the `{ "overridable": "auto" }` syntax to specialize the key's configuration on a per-team basis. You can then set `"model": "unmanaged"` in a team settings file, providing a specialization that takes precedence over `{% data variables.copilot.managed_setting_file %}` for members of the subject team.
+This key is overridable by enterprise team mapping. In your `{% data variables.copilot.managed_setting_file %}`, use the `{ "overridable": "auto" }` syntax to specialize the key's configuration on a per-team basis. You can then set `"model": "unmanaged"` in a team settings file, providing a specialization that takes precedence over `{% data variables.copilot.managed_setting_file %}` for members of the subject team.
 
 > [!NOTE]
 > `model` was originally documented as `permissions.model`. Clients still read the nested `permissions.model` value when the top-level `model` key is absent, but you should use the top-level `model` key in new configurations.