diff --git a/assets/admin/peptiderepo-model-picker.css b/assets/admin/peptiderepo-model-picker.css
new file mode 100644
index 0000000..5a7584f
--- /dev/null
+++ b/assets/admin/peptiderepo-model-picker.css
@@ -0,0 +1,6 @@
+/**
+ * Styling for model registry picker refresh functionality.
+ *
+ * Button animations and toast notifications are defined in admin.css.
+ * This file is reserved for model-picker-specific styles (future extensibility).
+ */
diff --git a/assets/admin/peptiderepo-model-picker.js b/assets/admin/peptiderepo-model-picker.js
new file mode 100644
index 0000000..eb92ba8
--- /dev/null
+++ b/assets/admin/peptiderepo-model-picker.js
@@ -0,0 +1,58 @@
+/**
+ * Model registry refresh handler for PRAutoBlogger admin settings.
+ *
+ * Handles the "Refresh Model List" button click in the AI Models admin tab.
+ * Sends AJAX request to refresh the OpenRouter model registry cache and shows
+ * success/error toast notifications.
+ *
+ * @see admin/class-admin-page.php — Renders the refresh button + nonce.
+ * @see ajax/class-model-registry-refresh.php — Server-side handler.
+ */
+(function ($) {
+	'use strict';
+
+	// Refresh model registry button.
+	$(document).on('click', '#prautoblogger-refresh-models', function (e) {
+		e.preventDefault();
+		var $btn = $(this);
+		var nonce = $btn.data('nonce');
+		var originalText = $btn.html();
+
+		$btn.prop('disabled', true).addClass('ab-btn-loading');
+
+		$.ajax({
+			url: ajaxurl,
+			method: 'POST',
+			data: {
+				action: 'prautoblogger_refresh_models',
+				nonce: nonce
+			},
+			timeout: 30000
+		})
+		.done(function (response) {
+			if (response.success && response.data && response.data.message) {
+				// Show success toast
+				var $notice = $('<div class="ab-save-notice" role="status"></div>')
+					.html('<span class="dashicons dashicons-yes"></span> ' + response.data.message)
+					.insertBefore('.ab-layout')
+					.delay(4000)
+					.fadeOut(function () {
+						$(this).remove();
+					});
+			}
+		})
+		.fail(function () {
+			var $notice = $('<div class="ab-save-notice notice-error" role="alert"></div>')
+				.html('<span class="dashicons dashicons-warning"></span> ' + 'Failed to refresh model list. Please try again.')
+				.insertBefore('.ab-layout')
+				.delay(5000)
+				.fadeOut(function () {
+					$(this).remove();
+				});
+		})
+		.always(function () {
+			$btn.prop('disabled', false).removeClass('ab-btn-loading').html(originalText);
+		});
+	});
+
+})(jQuery);
diff --git a/assets/js/admin.js b/assets/js/admin.js
index 4b32e8c..a81a325 100644
--- a/assets/js/admin.js
+++ b/assets/js/admin.js
@@ -446,49 +446,4 @@
 		});
 	});
 
-
-	// Refresh model registry button.
-	$(document).on('click', '#prautoblogger-refresh-models', function (e) {
-		e.preventDefault();
-		var $btn = $(this);
-		var nonce = $btn.data('nonce');
-		var originalText = $btn.html();
-
-		$btn.prop('disabled', true).addClass('ab-btn-loading');
-
-		$.ajax({
-			url: ajaxurl,
-			method: 'POST',
-			data: {
-				action: 'prautoblogger_refresh_models',
-				nonce: nonce
-			},
-			timeout: 30000
-		})
-		.done(function (response) {
-			if (response.success && response.data && response.data.message) {
-				// Show success toast
-				var $notice = $('<div class="ab-save-notice" role="status"></div>')
-					.html('<span class="dashicons dashicons-yes"></span> ' + response.data.message)
-					.insertBefore('.ab-layout')
-					.delay(4000)
-					.fadeOut(function () {
-						$(this).remove();
-					});
-			}
-		})
-		.fail(function () {
-			var $notice = $('<div class="ab-save-notice notice-error" role="alert"></div>')
-				.html('<span class="dashicons dashicons-warning"></span> ' + 'Failed to refresh model list. Please try again.')
-				.insertBefore('.ab-layout')
-				.delay(5000)
-				.fadeOut(function () {
-					$(this).remove();
-				});
-		})
-		.always(function () {
-			$btn.prop('disabled', false).removeClass('ab-btn-loading').html(originalText);
-		});
-	});
-
 })(jQuery);
diff --git a/includes/admin/class-admin-page.php b/includes/admin/class-admin-page.php
index b29ed8e..59e90dc 100755
--- a/includes/admin/class-admin-page.php
+++ b/includes/admin/class-admin-page.php
@@ -75,6 +75,8 @@ class PRAutoBlogger_Admin_Page {
 		wp_enqueue_style( 'prautoblogger-model-picker', PRAUTOBLOGGER_PLUGIN_URL . 'assets/css/model-picker.css', array( 'prautoblogger-admin' ), PRAUTOBLOGGER_VERSION );
 		wp_enqueue_script( 'prautoblogger-admin', PRAUTOBLOGGER_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery' ), PRAUTOBLOGGER_VERSION, true );
 		wp_enqueue_script( 'prautoblogger-model-picker', PRAUTOBLOGGER_PLUGIN_URL . 'assets/js/model-picker.js', array( 'jquery', 'prautoblogger-admin' ), PRAUTOBLOGGER_VERSION, true );
+		wp_enqueue_script( 'peptiderepo-model-picker', PRAUTOBLOGGER_PLUGIN_URL . 'assets/admin/peptiderepo-model-picker.js', array( 'jquery' ), PRAUTOBLOGGER_VERSION, true );
+		wp_enqueue_style( 'peptiderepo-model-picker', PRAUTOBLOGGER_PLUGIN_URL . 'assets/admin/peptiderepo-model-picker.css', array(), PRAUTOBLOGGER_VERSION );
 
 		wp_localize_script(
 			'prautoblogger-admin',