diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index a814159d1..eb2c43ea9 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -1497,8 +1497,14 @@ async function sendWindowAIRequest(messages, signal, stream) {
     }
 }
 
-export function getChatCompletionModel() {
-    switch (oai_settings.chat_completion_source) {
+/**
+ * Gets the API model for the selected chat completion source.
+ * @param {string} source If it's set, ignores active source
+ * @returns {string} API model
+ */
+export function getChatCompletionModel(source = null) {
+    const activeSource = source ?? oai_settings.chat_completion_source;
+    switch (activeSource) {
         case chat_completion_sources.CLAUDE:
             return oai_settings.claude_model;
         case chat_completion_sources.OPENAI:
@@ -1532,7 +1538,7 @@ export function getChatCompletionModel() {
         case chat_completion_sources.DEEPSEEK:
             return oai_settings.deepseek_model;
         default:
-            throw new Error(`Unknown chat completion source: ${oai_settings.chat_completion_source}`);
+            throw new Error(`Unknown chat completion source: ${activeSource}`);
     }
 }
 
diff --git a/public/scripts/st-context.js b/public/scripts/st-context.js
index 729418552..2393a4800 100644
--- a/public/scripts/st-context.js
+++ b/public/scripts/st-context.js
@@ -57,7 +57,7 @@ import { groups, openGroupChat, selected_group } from './group-chats.js';
 import { t, translate } from './i18n.js';
 import { hideLoader, showLoader } from './loader.js';
 import { MacrosParser } from './macros.js';
-import { oai_settings } from './openai.js';
+import { getChatCompletionModel, oai_settings } from './openai.js';
 import { callGenericPopup, Popup, POPUP_RESULT, POPUP_TYPE } from './popup.js';
 import { power_user, registerDebugFunction } from './power-user.js';
 import { getPresetManager } from './preset-manager.js';
@@ -200,6 +200,7 @@ export function getContext() {
         getTextGenServer,
         extractMessageFromData,
         getPresetManager,
+        getChatCompletionModel,
     };
 }