diff --git a/includes/AltGenerator.php b/includes/AltGenerator.php
index 7204a8a..bda0b94 100644
--- a/includes/AltGenerator.php
+++ b/includes/AltGenerator.php
@@ -7,7 +7,7 @@
 
 class AltGenerator {
 	const API_URL = 'https://api.openai.com/v1/chat/completions';
-	const MODEL   = 'gpt-4-turbo';
+	const MODEL   = 'gpt-4o';
 
 	public static function generate_alt_text( int $attachment_id, string $user_prompt = '' ): string|WP_Error {
 		if ( ! wp_attachment_is_image( $attachment_id ) ) {