diff --git a/public/index.html b/public/index.html
index c9694c561..f82f5bb4c 100644
--- a/public/index.html
+++ b/public/index.html
@@ -3924,6 +3924,7 @@
                             <h4 data-i18n="Z.AI Model">Z.AI Model</h4>
                             <select id="model_zai_select">
                                 <option value="glm-5-turbo">glm-5-turbo</option>
+                                <option value="glm-5.1">glm-5.1</option>
                                 <option value="glm-5">glm-5</option>
                                 <option value="glm-4.7">glm-4.7</option>
                                 <option value="glm-4.7-flash">glm-4.7-flash</option>
diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index fabe06e35..86e2965f7 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -4919,6 +4919,7 @@ function getZaiMaxContext(model, isUnlocked) {
     }
 
     const contextMap = {
+        'glm-5.1': max_200k,
         'glm-5-turbo': max_200k,
         'glm-5': max_200k,
         'glm-4.7': max_200k,