Add GPT-4.5

Author: crittermike

index.html

@@ -117,6 +117,7 @@ <h2 class="Box-title">
                 <select id="modelSelect" class="form-select width-full mb-2">
                     <option value="">None (Default)</option>
                     <option value="gpt-4o">GPT-4o</option>
+                    <option value="gpt-4.1">GPT-4.1</option>
                     <option value="gpt-4.5-preview">GPT-4.5</option>
                     <option value="o1">o1</option>
                     <option value="o3-mini">o3-mini</option>