diff --git a/ai/devdocs-link-preview/Vertex.js b/ai/devdocs-link-preview/Vertex.js
index f45a76fb4..c5631b486 100644
--- a/ai/devdocs-link-preview/Vertex.js
+++ b/ai/devdocs-link-preview/Vertex.js
@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 const VERTEX_AI_LOCATION = scriptPropertyWithDefault('project_location', 'us-central1');
-const MODEL_ID = scriptPropertyWithDefault('model_id', 'gemini-1.5-flash-preview-0514');
+const MODEL_ID = scriptPropertyWithDefault('model_id', 'gemini-2.5-flash');
 const SERVICE_ACCOUNT_KEY = scriptPropertyWithDefault('service_account_key');
 
 /**
diff --git a/ai/gmail-sentiment-analysis/Vertex.gs b/ai/gmail-sentiment-analysis/Vertex.gs
index f6299ecde..f93a86829 100644
--- a/ai/gmail-sentiment-analysis/Vertex.gs
+++ b/ai/gmail-sentiment-analysis/Vertex.gs
@@ -16,7 +16,7 @@ limitations under the License.
 
 const PROJECT_ID = [ADD YOUR GCP PROJECT ID HERE];
 const VERTEX_AI_LOCATION = 'europe-west2';
-const MODEL_ID = 'gemini-1.5-pro-002';
+const MODEL_ID = 'gemini-2.5-pro';
 const SERVICE_ACCOUNT_KEY = PropertiesService.getScriptProperties().getProperty('service_account_key');
 
 /**