diff --git a/packages/schema/src/model.ts b/packages/schema/src/model.ts
index d5ccf20d..55839787 100644
--- a/packages/schema/src/model.ts
+++ b/packages/schema/src/model.ts
@@ -40,7 +40,8 @@ export class JupyterCadModel implements IJupyterCadModel {
     }
   };
 
-  readonly collaborative = true;
+  readonly collaborative =
+    document.querySelectorAll('[data-jupyter-lite-root]')[0] === undefined;
 
   get sharedModel(): IJupyterCadDoc {
     return this._sharedModel;
diff --git a/python/jupytercad_core/src/jcadplugin/modelfactory.ts b/python/jupytercad_core/src/jcadplugin/modelfactory.ts
index 00275647..430b91fe 100644
--- a/python/jupytercad_core/src/jcadplugin/modelfactory.ts
+++ b/python/jupytercad_core/src/jcadplugin/modelfactory.ts
@@ -19,7 +19,8 @@ export class JupyterCadJcadModelFactory
   /**
    * Whether the model is collaborative or not.
    */
-  readonly collaborative = true;
+  readonly collaborative =
+    document.querySelectorAll('[data-jupyter-lite-root]')[0] === undefined;
 
   /**
    * The name of the model.
diff --git a/python/jupytercad_core/src/stepplugin/modelfactory.ts b/python/jupytercad_core/src/stepplugin/modelfactory.ts
index 2484b3d6..713ade13 100644
--- a/python/jupytercad_core/src/stepplugin/modelfactory.ts
+++ b/python/jupytercad_core/src/stepplugin/modelfactory.ts
@@ -11,7 +11,8 @@ export class JupyterCadStepModelFactory
   /**
    * Whether the model is collaborative or not.
    */
-  readonly collaborative = true;
+  readonly collaborative =
+    document.querySelectorAll('[data-jupyter-lite-root]')[0] === undefined;
 
   /**
    * The name of the model.
diff --git a/python/jupytercad_core/src/stlplugin/modelfactory.ts b/python/jupytercad_core/src/stlplugin/modelfactory.ts
index 1a3596db..756c9d8c 100644
--- a/python/jupytercad_core/src/stlplugin/modelfactory.ts
+++ b/python/jupytercad_core/src/stlplugin/modelfactory.ts
@@ -11,7 +11,8 @@ export class JupyterCadStlModelFactory
   /**
    * Whether the model is collaborative or not.
    */
-  readonly collaborative = true;
+  readonly collaborative =
+    document.querySelectorAll('[data-jupyter-lite-root]')[0] === undefined;
 
   /**
    * The name of the model.