diff --git a/apps/pipelines/admin.py b/apps/pipelines/admin.py
index 815e03c94..842f33e03 100644
--- a/apps/pipelines/admin.py
+++ b/apps/pipelines/admin.py
@@ -1,6 +1,6 @@
 from django.contrib import admin
 
-from .models import Pipeline, PipelineChatHistory, PipelineChatMessages, PipelineRun
+from .models import Node, Pipeline, PipelineChatHistory, PipelineChatMessages, PipelineRun
 
 
 class PipelineRunInline(admin.TabularInline):
@@ -8,9 +8,14 @@ class PipelineRunInline(admin.TabularInline):
     extra = 0
 
 
+class PipelineNodeInline(admin.TabularInline):
+    model = Node
+    extra = 0
+
+
 @admin.register(Pipeline)
 class PipelineAdmin(admin.ModelAdmin):
-    inlines = [PipelineRunInline]
+    inlines = [PipelineNodeInline, PipelineRunInline]
 
 
 class PipelineChatMessagesInline(admin.TabularInline):
diff --git a/apps/pipelines/migrations/0011_migrate_assistant_id.py b/apps/pipelines/migrations/0011_migrate_assistant_id.py
new file mode 100644
index 000000000..5d0da513a
--- /dev/null
+++ b/apps/pipelines/migrations/0011_migrate_assistant_id.py
@@ -0,0 +1,24 @@
+from django.db import migrations
+
+
+def _update_assistant_id_type(apps, schema_editor):
+    Node = apps.get_model("pipelines", "Node")
+
+    for node in Node.objects.filter(type="AssistantNode").all():
+        if assistant_id := node.params.get("assistant_id"):
+            if isinstance(assistant_id, str):
+                continue
+
+            node.params["assistant_id"] = str(assistant_id)
+            node.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pipelines', '0010_auto_20241127_2042'),
+    ]
+
+    operations = [
+        migrations.RunPython(_update_assistant_id_type, reverse_code=migrations.RunPython.noop)
+    ]
diff --git a/apps/pipelines/models.py b/apps/pipelines/models.py
index 8e38fd969..299509037 100644
--- a/apps/pipelines/models.py
+++ b/apps/pipelines/models.py
@@ -338,7 +338,8 @@ def create_new_version(self):
             assistant = OpenAiAssistant.objects.get(id=new_version.params.get("assistant_id"))
             if not assistant.is_a_version:
                 assistant_version = assistant.create_new_version()
-                new_version.params["assistant_id"] = assistant_version.id
+                # convert to string to be consistent with values from the UI
+                new_version.params["assistant_id"] = str(assistant_version.id)
 
         new_version.save()
         self._copy_custom_action_operations_to_new_version(new_node=new_version)
diff --git a/apps/pipelines/tests/test_models.py b/apps/pipelines/tests/test_models.py
index b67aee5ba..4d5a6629e 100644
--- a/apps/pipelines/tests/test_models.py
+++ b/apps/pipelines/tests/test_models.py
@@ -44,7 +44,7 @@ def test_versioning_assistant_node(self, versioned_assistant_linked):
             assistant = assistant.create_new_version()
 
         pipeline = PipelineFactory()
-        NodeFactory(type="AssistantNode", pipeline=pipeline, params={"assistant_id": assistant.id})
+        NodeFactory(type="AssistantNode", pipeline=pipeline, params={"assistant_id": str(assistant.id)})
         assert pipeline.node_set.filter(type="AssistantNode").exists()
 
         pipeline.create_new_version()
@@ -57,11 +57,11 @@ def test_versioning_assistant_node(self, versioned_assistant_linked):
         node_version_assistant_id = node_version.params["assistant_id"]
 
         if versioned_assistant_linked:
-            assert original_node_assistant_id == node_version_assistant_id == assistant.id
+            assert original_node_assistant_id == node_version_assistant_id == str(assistant.id)
         else:
             assert original_node_assistant_id != node_version_assistant_id
-            assert original_node_assistant_id == assistant.id
-            assert node_version_assistant_id == assistant_version.id
+            assert original_node_assistant_id == str(assistant.id)
+            assert node_version_assistant_id == str(assistant_version.id)
 
 
 class TestPipeline: