diff --git a/scripts/breaking_changes_checker/breaking_changes_tracker.py b/scripts/breaking_changes_checker/breaking_changes_tracker.py
index fee9d991467d..d5c5aab352c6 100644
--- a/scripts/breaking_changes_checker/breaking_changes_tracker.py
+++ b/scripts/breaking_changes_checker/breaking_changes_tracker.py
@@ -149,6 +149,22 @@ def is_client(self, module_name: Any, class_name: Any) -> bool:
                 return True
         return False
 
+    def is_operation_group(self, module_name: Any, class_name: Any) -> bool:
+        """Determine whether a class should be treated as an operation group.
+
+        Operation group classes follow the codegen convention of a name ending
+        with ``Operations`` (case-insensitive, which also covers the default
+        ``Operations`` class) and being defined in an operations module (module
+        namespace ending with ``operations``). This mirrors the existing
+        ``attr_type.lower().endswith("operations")`` heuristic used elsewhere to
+        recognize operation group properties on clients.
+        """
+        if isinstance(class_name, jsondiff.Symbol) or not isinstance(class_name, str):
+            return False
+        if isinstance(module_name, jsondiff.Symbol) or not isinstance(module_name, str):
+            return False
+        return class_name.lower().endswith("operations") and module_name.endswith("operations")
+
     def run_post_processing(self) -> None:
         # Remove duplicate reporting of changes that apply to both sync and async package components
         self.run_async_cleanup(self.breaking_changes)
diff --git a/scripts/breaking_changes_checker/changelog_tracker.py b/scripts/breaking_changes_checker/changelog_tracker.py
index 3f2c0e6f1832..0c1154f6b8bd 100644
--- a/scripts/breaking_changes_checker/changelog_tracker.py
+++ b/scripts/breaking_changes_checker/changelog_tracker.py
@@ -22,6 +22,7 @@ class ChangeType(str, Enum):
     ADDED_ENUM_MEMBER = "AddedEnumMember"
     ADDED_FUNCTION_PARAMETER = "AddedFunctionParameter"
     ADDED_OPERATION_GROUP = "AddedOperationGroup"
+    ADDED_OPERATION_GROUP_CLASS = "AddedOperationGroupClass"
 
 class ChangelogTracker(BreakingChangesTracker):
     ADDED_CLIENT_MSG = \
@@ -46,6 +47,8 @@ class ChangelogTracker(BreakingChangesTracker):
         "Enum `{}` added member `{}`"
     ADDED_OPERATION_GROUP_MSG = \
         "Client `{}` added operation group `{}`"
+    ADDED_OPERATION_GROUP_CLASS_MSG = \
+        "Added operation group `{}`"
 
 
     def __init__(self, stable: Dict, current: Dict, package_name: str, **kwargs: Any) -> None:
@@ -87,6 +90,14 @@ def run_non_breaking_class_level_diff_checks(self, module: Dict) -> None:
                             self.module_name, class_name
                         )
                         self.features_added.append(fa)
+                    elif self.is_operation_group(self.module_name, self.class_name):
+                        # This is a new operation group class
+                        fa = (
+                            self.ADDED_OPERATION_GROUP_CLASS_MSG,
+                            ChangeType.ADDED_OPERATION_GROUP_CLASS,
+                            self.module_name, class_name
+                        )
+                        self.features_added.append(fa)
                     else:
                         # This is a new class
                         fa = (
diff --git a/scripts/breaking_changes_checker/tests/data/expected_apimanagement_5_6b1_changelog.txt b/scripts/breaking_changes_checker/tests/data/expected_apimanagement_5_6b1_changelog.txt
index ff9074d58326..77f854ff8a56 100644
--- a/scripts/breaking_changes_checker/tests/data/expected_apimanagement_5_6b1_changelog.txt
+++ b/scripts/breaking_changes_checker/tests/data/expected_apimanagement_5_6b1_changelog.txt
@@ -672,10 +672,10 @@
   - Model `WorkspaceTagOperations` added parameter `match_condition` in method `delete`
   - Model `WorkspaceTagOperations` added parameter `etag` in method `update`
   - Model `WorkspaceTagOperations` added parameter `match_condition` in method `update`
-  - Added model `ApiGatewayHostnameBindingOperations`
-  - Added model `ApiToolOperations`
-  - Added model `ClientApplicationOperations`
-  - Added model `ClientApplicationProductLinkOperations`
+  - Added operation group `ApiGatewayHostnameBindingOperations`
+  - Added operation group `ApiToolOperations`
+  - Added operation group `ClientApplicationOperations`
+  - Added operation group `ClientApplicationProductLinkOperations`
 
 ### Breaking Changes
 
diff --git a/scripts/breaking_changes_checker/tests/test_changelog.py b/scripts/breaking_changes_checker/tests/test_changelog.py
index 0846bcbf4d99..5c00fd6161ce 100644
--- a/scripts/breaking_changes_checker/tests/test_changelog.py
+++ b/scripts/breaking_changes_checker/tests/test_changelog.py
@@ -447,6 +447,59 @@ def test_new_class_property_added_init():
     assert args == ['azure.ai.contentsafety', 'AnalyzeTextResult', 'new_class_att']
 
 
+def test_added_operation_group_class_not_labeled_as_model():
+    # A newly added operation group class must be reported as "Added operation group `X`",
+    # not "Added model `X`". It appears in both the sync `...operations` module and the async
+    # `...aio.operations` module, but the async cleanup should collapse it into a single entry.
+    def _op_group_module():
+        return {
+            "class_nodes": {
+                "ExistingOperations": {
+                    "type": None,
+                    "methods": {},
+                    "properties": {}
+                },
+                "PrivateLinkResourcesOperations": {
+                    "type": None,
+                    "methods": {},
+                    "properties": {}
+                }
+            }
+        }
+
+    def _stable_op_group_module():
+        return {
+            "class_nodes": {
+                "ExistingOperations": {
+                    "type": None,
+                    "methods": {},
+                    "properties": {}
+                }
+            }
+        }
+
+    current = {
+        "azure.mgmt.attestation.operations": _op_group_module(),
+        "azure.mgmt.attestation.aio.operations": _op_group_module(),
+    }
+    stable = {
+        "azure.mgmt.attestation.operations": _stable_op_group_module(),
+        "azure.mgmt.attestation.aio.operations": _stable_op_group_module(),
+    }
+
+    bc = ChangelogTracker(stable, current, "azure-mgmt-attestation")
+    bc.run_checks()
+
+    op_group_entries = [fa for fa in bc.features_added if fa[0] == ChangelogTracker.ADDED_OPERATION_GROUP_CLASS_MSG]
+    added_model_entries = [fa for fa in bc.features_added if fa[0] == ChangelogTracker.ADDED_CLASS_MSG]
+
+    # Exactly one operation group entry (sync/async duplicate collapsed) and no "Added model".
+    assert len(op_group_entries) == 1
+    assert not added_model_entries
+    _, _, _, class_name = op_group_entries[0]
+    assert class_name == "PrivateLinkResourcesOperations"
+
+
 def test_new_class_property_added_init_only():
     # Testing if we get a report on a new class property added only in the init
     current = {