diff --git a/doc/user/gitlab_duo/model_selection.md b/doc/user/gitlab_duo/model_selection.md
index ded9af04e4fed0fcb12403ce89de1d1e00ef1d66..3ad72dd772ead870e25db94b94c45464674651ef 100644
--- a/doc/user/gitlab_duo/model_selection.md
+++ b/doc/user/gitlab_duo/model_selection.md
@@ -9,7 +9,7 @@ title: GitLab Duo model selection
 {{< details >}}
 
 - Tier: Premium, Ultimate
-- Add-on: GitLab Duo Core, Pro or Enterprise
+- Add-on: GitLab Duo Core, Pro, or Enterprise
 - Offering: GitLab.com
 - Status: Private beta
 
@@ -57,13 +57,20 @@ To select a different LLM for a feature:
 
 ## Assign a default GitLab Duo namespace
 
+{{< details >}}
+
+- Add-on: GitLab Duo Pro or Enterprise
+
+{{< /details >}}
+
 {{< history >}}
 
 - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/552081) in GitLab 18.3.
 
 {{< /history >}}
 
-If you belong to multiple GitLab Duo namespaces, you must choose one as your default namespace.
+If you are [assigned a seat](../../subscriptions/subscription-add-ons.md#assign-gitlab-duo-seats)
+in multiple GitLab Duo namespaces, you must choose a namespace as your default.
 
 You must do this because GitLab Duo might not be able to automatically detect the namespace you are working from, and therefore the LLMs you want to use. For example, when: