diff --git a/nucleus/__init__.py b/nucleus/__init__.py
index 96b23ce5..71aa6402 100644
--- a/nucleus/__init__.py
+++ b/nucleus/__init__.py
@@ -67,10 +67,11 @@
 
 from .annotation import (
     BoxAnnotation,
-    Point,
     PolygonAnnotation,
     Segment,
     SegmentationAnnotation,
+    Point,
+    CuboidAnnotation,
 )
 from .constants import (
     ANNOTATION_METADATA_SCHEMA_KEY,
@@ -118,6 +119,7 @@
 )
 from .prediction import (
     BoxPrediction,
+    CuboidPrediction,
     PolygonPrediction,
     SegmentationPrediction,
 )
@@ -569,6 +571,8 @@ def annotate_dataset(
         :param update: whether to update or ignore conflicting annotations
         :return: {"dataset_id: str, "annotations_processed": int}
         """
+        if any((isinstance(ann, CuboidAnnotation) for ann in annotations)):
+            raise NotImplementedError("Cuboid annotations not yet supported")
 
         # Split payload into segmentations and Box/Polygon
         segmentations = [
@@ -727,6 +731,9 @@ def predict(
             "predictions_ignored": int,
         }
         """
+        if any((isinstance(ann, CuboidPrediction) for ann in annotations)):
+            raise NotImplementedError("Cuboid predictions not yet supported")
+
         segmentations = [
             ann
             for ann in annotations
diff --git a/nucleus/dataset.py b/nucleus/dataset.py
index 8fdbe1b4..756c0619 100644
--- a/nucleus/dataset.py
+++ b/nucleus/dataset.py
@@ -3,15 +3,18 @@
 import requests
 
 from nucleus.job import AsyncJob
+from nucleus.url_utils import sanitize_string_args
 from nucleus.utils import (
     convert_export_payload,
     format_dataset_item_response,
     serialize_and_write_to_presigned_url,
 )
 
-from nucleus.url_utils import sanitize_string_args
-
-from .annotation import Annotation, check_all_annotation_paths_remote
+from .annotation import (
+    Annotation,
+    CuboidAnnotation,
+    check_all_annotation_paths_remote,
+)
 from .constants import (
     DATASET_ITEM_IDS_KEY,
     DATASET_LENGTH_KEY,
@@ -33,7 +36,6 @@
 )
 from .payload_constructor import construct_model_run_creation_payload
 
-
 WARN_FOR_LARGE_UPLOAD = 50000
 
 
@@ -166,6 +168,9 @@ def annotate(
             "ignored_items": int,
         }
         """
+        if any((isinstance(ann, CuboidAnnotation) for ann in annotations)):
+            raise NotImplementedError("Cuboid annotations not yet supported")
+
         if asynchronous:
             check_all_annotation_paths_remote(annotations)