diff --git a/public/scripts/extensions/caption/settings.html b/public/scripts/extensions/caption/settings.html
index 5a92ba7d8..187e47876 100644
--- a/public/scripts/extensions/caption/settings.html
+++ b/public/scripts/extensions/caption/settings.html
@@ -54,6 +54,7 @@
                         <option data-type="anthropic" value="claude-3-sonnet-20240229">claude-3-sonnet-20240229</option>
                         <option data-type="anthropic" value="claude-3-haiku-20240307">claude-3-haiku-20240307</option>
                         <option data-type="google" value="gemini-2.0-flash-exp">gemini-2.0-flash-exp</option>
+                        <option data-type="google" value="gemini-2.0-flash-thinking-exp-1219">gemini-2.0-flash-thinking-exp-1219</option>
                         <option data-type="google" value="gemini-1.5-flash">gemini-1.5-flash</option>
                         <option data-type="google" value="gemini-1.5-flash-latest">gemini-1.5-flash-latest</option>
                         <option data-type="google" value="gemini-1.5-flash-001">gemini-1.5-flash-001</option>
diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index 41b929ef3..3eb1b506a 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -4144,7 +4144,7 @@ async function onModelChange() {
     if (oai_settings.chat_completion_source == chat_completion_sources.MAKERSUITE) {
         if (oai_settings.max_context_unlocked) {
             $('#openai_max_context').attr('max', max_2mil);
-        } else if (value.includes('gemini-exp-1114') || value.includes('gemini-exp-1121')) {
+        } else if (value.includes('gemini-exp-1114') || value.includes('gemini-exp-1121') || value.includes('gemini-2.0-flash-thinking-exp-1219')) {
             $('#openai_max_context').attr('max', max_32k);
         } else if (value.includes('gemini-1.5-pro') || value.includes('gemini-exp-1206')) {
             $('#openai_max_context').attr('max', max_2mil);
@@ -4812,6 +4812,7 @@ export function isImageInliningSupported() {
     // gultra just isn't being offered as multimodal, thanks google.
     const visionSupportedModels = [
         'gpt-4-vision',
+        'gemini-2.0-flash-thinking-exp-1219',
         'gemini-2.0-flash-exp',
         'gemini-1.5-flash',
         'gemini-1.5-flash-latest',
diff --git a/src/endpoints/backends/chat-completions.js b/src/endpoints/backends/chat-completions.js
index 4e327bd5b..c8a76c85d 100644
--- a/src/endpoints/backends/chat-completions.js
+++ b/src/endpoints/backends/chat-completions.js
@@ -294,6 +294,7 @@ async function sendMakerSuiteRequest(request, response) {
         }
 
         const should_use_system_prompt = (
+            model.includes('gemini-2.0-flash-thinking-exp') ||
             model.includes('gemini-2.0-flash-exp') ||
             model.includes('gemini-1.5-flash') ||
             model.includes('gemini-1.5-pro') ||
diff --git a/src/prompt-converters.js b/src/prompt-converters.js
index 4856a5f90..91df7fd65 100644
--- a/src/prompt-converters.js
+++ b/src/prompt-converters.js
@@ -360,6 +360,7 @@ export function convertCohereMessages(messages, names) {
  */
 export function convertGooglePrompt(messages, model, useSysPrompt, names) {
     const visionSupportedModels = [
+        'gemini-2.0-flash-thinking-exp-1219',
         'gemini-2.0-flash-exp',
         'gemini-1.5-flash',
         'gemini-1.5-flash-latest',