diff --git a/sdk/batch/speechmatics/batch/_models.py b/sdk/batch/speechmatics/batch/_models.py
index 07b594c1..478dac9a 100644
--- a/sdk/batch/speechmatics/batch/_models.py
+++ b/sdk/batch/speechmatics/batch/_models.py
@@ -50,6 +50,7 @@ class OperatingPoint(str, Enum):
     ENHANCED = "enhanced"
     STANDARD = "standard"
     MELIA_1 = "melia-1"
+    OAK_1 = "oak-1"
 
 
 class Model(str, Enum):
@@ -58,6 +59,7 @@ class Model(str, Enum):
     ENHANCED = "enhanced"
     STANDARD = "standard"
     MELIA_1 = "melia-1"
+    OAK_1 = "oak-1"
 
 
 class NotificationContents(str, Enum):
diff --git a/tests/batch/test_models.py b/tests/batch/test_models.py
index 48855c04..fafbe974 100644
--- a/tests/batch/test_models.py
+++ b/tests/batch/test_models.py
@@ -142,6 +142,12 @@ def test_model_gets_serialized(self):
         assert result["model"] == Model.MELIA_1
         assert "operating_point" not in result
 
+    def test_oak_model_gets_serialized(self):
+        config = TranscriptionConfig(model=Model.OAK_1)
+        result = config.to_dict()
+        assert result["model"] == Model.OAK_1
+        assert "operating_point" not in result
+
     def test_operating_point_gets_serialized(self):
         config = TranscriptionConfig(operating_point=OperatingPoint.STANDARD)
         result = config.to_dict()