diff --git a/README.md b/README.md
index e83c636..f8e478e 100644
--- a/README.md
+++ b/README.md
@@ -91,7 +91,7 @@ Everything else — vision API key, image search endpoints — is fetched automa
 
 | Variable | Description |
 |----------|-------------|
-| `VISION_MODEL` | Override model name (default: `gpt-4o-mini`) |
+| `VISION_MODEL` | Override model name (default: `aliyun-cp-multimodal`) |
 | `VISION_API_BASE` | Override vision API base URL |
 | `VISION_API_KEY` | Override vision API key |
 | `AUTH_RT_BIN` | Override path to the `auth-rt` binary |
diff --git a/src/index.ts b/src/index.ts
index be9d94a..957344a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -21,7 +21,7 @@ async function loadVisionConfig(client: ReturnType<typeof createSkillClient>): P
   return {
     apiKey,
     baseURL: cfg.metadata?.provider?.base_url ?? process.env.VISION_API_BASE,
-    model: process.env.VISION_MODEL ?? cfg.metadata?.provider?.model ?? 'gpt-4o-mini',
+    model: process.env.VISION_MODEL ?? cfg.metadata?.provider?.model ?? 'aliyun-cp-multimodal',
   };
 }