diff --git a/public/scripts/extensions/caption/settings.html b/public/scripts/extensions/caption/settings.html
index a78d33505..2e4b4a3d8 100644
--- a/public/scripts/extensions/caption/settings.html
+++ b/public/scripts/extensions/caption/settings.html
@@ -80,6 +80,7 @@
                         <option data-type="google" value="gemini-2.5-pro-exp-03-25">gemini-2.5-pro-exp-03-25</option>
                         <option data-type="google" value="gemini-2.0-pro-exp">gemini-2.0-pro-exp</option>
                         <option data-type="google" value="gemini-2.0-pro-exp-02-05">gemini-2.0-pro-exp-02-05</option>
+                        <option data-type="google" value="gemini-2.5-flash-preview-04-17">gemini-2.5-flash-preview-04-17</option>
                         <option data-type="google" value="gemini-2.0-flash-lite-preview">gemini-2.0-flash-lite-preview</option>
                         <option data-type="google" value="gemini-2.0-flash-lite-preview-02-05">gemini-2.0-flash-lite-preview-02-05</option>
                         <option data-type="google" value="gemini-2.0-flash">gemini-2.0-flash</option>
diff --git a/src/prompt-converters.js b/src/prompt-converters.js
index a771fc508..8ea3ab896 100644
--- a/src/prompt-converters.js
+++ b/src/prompt-converters.js
@@ -364,6 +364,7 @@ export function convertGooglePrompt(messages, model, useSysPrompt, names) {
         'gemini-2.5-pro-exp-03-25',
         'gemini-2.0-pro-exp',
         'gemini-2.0-pro-exp-02-05',
+        'gemini-2.5-flash-preview-04-17',
         'gemini-2.0-flash-lite-preview',
         'gemini-2.0-flash-lite-preview-02-05',
         'gemini-2.0-flash',