diff --git a/yudao-module-tik/src/main/java/cn/iocoder/yudao/module/tik/voice/client/SiliconFlowProvider.java b/yudao-module-tik/src/main/java/cn/iocoder/yudao/module/tik/voice/client/SiliconFlowProvider.java
index 8070b67f11..18b0412d1f 100644
--- a/yudao-module-tik/src/main/java/cn/iocoder/yudao/module/tik/voice/client/SiliconFlowProvider.java
+++ b/yudao-module-tik/src/main/java/cn/iocoder/yudao/module/tik/voice/client/SiliconFlowProvider.java
@@ -115,7 +115,7 @@ public class SiliconFlowProvider implements VoiceCloneProvider {
 
         try {
             SiliconFlowTtsRequest sfRequest = SiliconFlowTtsRequest.builder()
-                    .model(getOrDefault(request.getModel(), config.getDefaultModel()))
+                    .model(getOrDefault(request.getModel(), getOrDefault(config.getDefaultModel(), "IndexTeam/IndexTTS-2")))
                     .input(request.getText())
                     .voice(request.getVoiceId())
                     .speed(request.getSpeechRate() != null ? request.getSpeechRate() : 1.0f)