diff --git a/wwwroot/index.html b/wwwroot/index.html
index 7b59811..88f03ed 100644
--- a/wwwroot/index.html
+++ b/wwwroot/index.html
@@ -248,6 +248,9 @@
           <optgroup label="Google Gemini" id="geminiOptgroup">
             <option value="" disabled>Wird geladen...</option>
           </optgroup>
+          <optgroup label="Nvidia" id="nvidiaOptgroup">
+            <option value="" disabled>Wird geladen...</option>
+          </optgroup>
         </select>
         <label>Reasoning-Effort <span class="checkbox-hint">(Claude Opus 4.5+/Sonnet 4.6+ · GLM 5.2: nur xhigh/Max heben die Stufe)</span></label>
         <select id="agentEffort">