diff --git a/generative_ai/model_tuning/genai_sdk_supervised_checkpoints_set_default_example.py b/generative_ai/model_tuning/genai_sdk_supervised_checkpoints_set_default_example.py
new file mode 100644
index 00000000000..39a40f54f73
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+++ b/generative_ai/model_tuning/genai_sdk_supervised_checkpoints_set_default_example.py
@@ -0,0 +1,60 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+
+from google.genai import types
+
+PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
+
+
+def genai_sdk_gemini_tuning_checkpoints_set_default_example() -> types.Model:
+  # [START genaisdk_gemini_tuning_checkpoints_set_default]
+  from google import genai
+
+  client = genai.Client(
+      vertexai=True,
+      project=PROJECT_ID,
+      location="us-central1",
+  )
+
+  name = (
+      "projects/123456789012/locations/us-central1/tuningJobs/123456789012345"
+  )
+  tuning_job = client.tunings.get(name=name)
+  tuned_model = client.models.get(model=tuning_job.tuned_model.model)
+
+  print(f"Default checkpoint: {tuned_model.default_checkpoint_id}")
+  print(f"Tuned model endpoint: {tuning_job.tuned_model.endpoint}")
+  # Example response:
+  # Default checkpoint: 2
+  # projects/123456789012/locations/us-central1/endpoints/123456789012345
+
+  tuned_model = client.models.update(
+      model=tuned_model.name,
+      config=types.UpdateModelConfig(default_checkpoint_id="1"),
+  )
+
+  print(f"Default checkpoint: {tuned_model.default_checkpoint_id}")
+  print(f"Tuned model endpoint: {tuning_job.tuned_model.endpoint}")
+  # Example response:
+  # Default checkpoint: 1
+  # projects/123456789012/locations/us-central1/endpoints/123456789000000
+
+  # [END genaisdk_gemini_tuning_checkpoints_set_default]
+  return tuned_model
+
+
+if __name__ == "__main__":
+  genai_sdk_gemini_tuning_checkpoints_set_default_example()