diff --git a/astrbot/core/config/default.py b/astrbot/core/config/default.py
index ff3ccd4f96..093ddac8d4 100644
--- a/astrbot/core/config/default.py
+++ b/astrbot/core/config/default.py
@@ -1636,7 +1636,7 @@
                         "enable": False,
                         "api_key": "",
                         "api_base": "https://api.xiaomimimo.com/v1",
-                        "model": "mimo-v2-tts",
+                        "model": "mimo-v2.5-tts",
                         "mimo-tts-voice": "mimo_default",
                         "mimo-tts-format": "wav",
                         "mimo-tts-style-prompt": "",
diff --git a/astrbot/core/provider/sources/mimo_api_common.py b/astrbot/core/provider/sources/mimo_api_common.py
index 9ae260ccee..86e01ea141 100644
--- a/astrbot/core/provider/sources/mimo_api_common.py
+++ b/astrbot/core/provider/sources/mimo_api_common.py
@@ -8,7 +8,7 @@
 from astrbot.core.utils.media_utils import MediaResolver, describe_media_ref
 
 DEFAULT_MIMO_API_BASE = "https://api.xiaomimimo.com/v1"
-DEFAULT_MIMO_TTS_MODEL = "mimo-v2-tts"
+DEFAULT_MIMO_TTS_MODEL = "mimo-v2.5-tts"
 DEFAULT_MIMO_TTS_VOICE = "mimo_default"
 DEFAULT_MIMO_TTS_SEED_TEXT = "Hello, MiMo, have you had lunch?"
 # The MiMo-V2 series went offline on 2026-06-30; mimo-v2.5-asr is the