diff --git a/backend/open_webui/apps/ollama/main.py b/backend/open_webui/apps/ollama/main.py
index 09862c111..3a94b721d 100644
--- a/backend/open_webui/apps/ollama/main.py
+++ b/backend/open_webui/apps/ollama/main.py
@@ -362,8 +362,6 @@ async def get_ollama_tags(
                     user.id, type="read", access_control=model_info.access_control
                 ):
                     filtered_models.append(model)
-            else:
-                filtered_models.append(model)
         models["models"] = filtered_models
 
     return models
@@ -960,6 +958,12 @@ async def generate_chat_completion(
                     status_code=403,
                     detail="Model not found",
                 )
+    else:
+        if user.role != "admin":
+            raise HTTPException(
+                status_code=403,
+                detail="Model not found",
+            )
 
     if ":" not in payload["model"]:
         payload["model"] = f"{payload['model']}:latest"
@@ -1048,6 +1052,12 @@ async def generate_openai_chat_completion(
                     status_code=403,
                     detail="Model not found",
                 )
+    else:
+        if user.role != "admin":
+            raise HTTPException(
+                status_code=403,
+                detail="Model not found",
+            )
 
     if ":" not in payload["model"]:
         payload["model"] = f"{payload['model']}:latest"
@@ -1130,8 +1140,6 @@ async def get_openai_models(
                     user.id, type="read", access_control=model_info.access_control
                 ):
                     filtered_models.append(model)
-            else:
-                filtered_models.append(model)
         models = filtered_models
 
     return {
diff --git a/backend/open_webui/apps/openai/main.py b/backend/open_webui/apps/openai/main.py
index ff842a374..4c710f840 100644
--- a/backend/open_webui/apps/openai/main.py
+++ b/backend/open_webui/apps/openai/main.py
@@ -424,8 +424,6 @@ async def get_models(url_idx: Optional[int] = None, user=Depends(get_verified_us
                     user.id, type="read", access_control=model_info.access_control
                 ):
                     filtered_models.append(model)
-            else:
-                filtered_models.append(model)
         models["data"] = filtered_models
 
     return models
@@ -512,6 +510,12 @@ async def generate_chat_completion(
                     status_code=403,
                     detail="Model not found",
                 )
+    else:
+        if user.role != "admin":
+            raise HTTPException(
+                status_code=403,
+                detail="Model not found",
+            )
 
     # Attemp to get urlIdx from the model
     models = await get_all_models()
diff --git a/backend/open_webui/main.py b/backend/open_webui/main.py
index 37c94247a..cd1c73fbf 100644
--- a/backend/open_webui/main.py
+++ b/backend/open_webui/main.py
@@ -557,7 +557,12 @@ class ChatCompletionMiddleware(BaseHTTPMiddleware):
 
         model_info = Models.get_model_by_id(model["id"])
         if user.role == "user":
-            if model_info and not (
+            if not model_info:
+                return JSONResponse(
+                    status_code=status.HTTP_404_NOT_FOUND,
+                    content={"detail": "Model not found"},
+                )
+            elif not (
                 user.id == model_info.user_id
                 or has_access(
                     user.id, type="read", access_control=model_info.access_control
@@ -1113,8 +1118,6 @@ async def get_models(user=Depends(get_verified_user)):
                     user.id, type="read", access_control=model_info.access_control
                 ):
                     filtered_models.append(model)
-            else:
-                filtered_models.append(model)
         models = filtered_models
 
     return {"data": models}
@@ -1147,7 +1150,12 @@ async def generate_chat_completions(
     # Check if user has access to the model
     if user.role == "user":
         model_info = Models.get_model_by_id(model_id)
-        if model_info and not (
+        if not model_info:
+            raise HTTPException(
+                status_code=404,
+                detail="Model not found",
+            )
+        elif not (
             user.id == model_info.user_id
             or has_access(
                 user.id, type="read", access_control=model_info.access_control
diff --git a/src/lib/components/workspace/Models/ModelEditor.svelte b/src/lib/components/workspace/Models/ModelEditor.svelte
index c2fb9b675..7a7b376f5 100644
--- a/src/lib/components/workspace/Models/ModelEditor.svelte
+++ b/src/lib/components/workspace/Models/ModelEditor.svelte
@@ -79,7 +79,7 @@
 	let filterIds = [];
 	let actionIds = [];
 
-	let accessControl = null;
+	let accessControl = {};
 
 	const addUsage = (base_model_id) => {
 		const baseModel = $models.find((m) => m.id === base_model_id);
@@ -213,7 +213,11 @@
 				capabilities.usage = false;
 			}
 
-			accessControl = model?.access_control ?? null;
+			if ('access_control' in model) {
+				accessControl = model.access_control;
+			} else {
+				accessControl = {};
+			}
 
 			console.log(model?.access_control);
 			console.log(accessControl);