diff --git a/homelab-ai-bot/llm.py b/homelab-ai-bot/llm.py
index 113f6825..b6355740 100644
--- a/homelab-ai-bot/llm.py
+++ b/homelab-ai-bot/llm.py
@@ -525,7 +525,8 @@ def ask_with_image(image_base64: str, caption: str, tool_handlers: dict, session
     try:
         for _round in range(MAX_TOOL_ROUNDS):
             data = _call_api(messages, api_key, use_tools=True,
-                             model=MODEL_VISION, max_tokens=4000)
+                             model=MODEL_VISION, max_tokens=4000,
+                             allow_fallback=False)
             choice = data["choices"][0]
             msg = choice["message"]
 
@@ -561,8 +562,14 @@ def ask_with_image(image_base64: str, caption: str, tool_handlers: dict, session
                 })
 
         data = _call_api(messages, api_key, use_tools=False,
-                         model=MODEL_VISION, max_tokens=4000)
+                         model=MODEL_VISION, max_tokens=4000,
+                         allow_fallback=False)
         return data["choices"][0]["message"]["content"]
 
+    except requests.exceptions.ReadTimeout:
+        return (
+            "Das Vision-Modell antwortet nicht (Timeout). "
+            "Bitte in 1-2 Min erneut versuchen — das Modell wird gerade geladen."
+        )
     except Exception as e:
         return f"Vision-LLM-Fehler: {e}"