diff --git a/developer-guide/getting-started/quickstart.mdx b/developer-guide/getting-started/quickstart.mdx
index 611a3e6..05edb0f 100644
--- a/developer-guide/getting-started/quickstart.mdx
+++ b/developer-guide/getting-started/quickstart.mdx
@@ -47,7 +47,7 @@ Choose your preferred method to generate speech:
         curl -X POST https://api.fish.audio/v1/tts \
           -H "Authorization: Bearer $FISH_API_KEY" \
           -H "Content-Type: application/json" \
-          -H "model: s2-pro" \
+          -H "model: s2.1-pro-free" \
           -d '{
             "text": "Hello! Welcome to Fish Audio. This is my first AI-generated voice.",
             "format": "mp3"
@@ -275,4 +275,4 @@ Then generate speech with your chosen voice:
   </Tab>
 </Tabs>
 
-<Support />
\ No newline at end of file
+<Support />