diff --git a/backend/open_webui/routers/models.py b/backend/open_webui/routers/models.py
index 33aa73429e..eabfbd56eb 100644
--- a/backend/open_webui/routers/models.py
+++ b/backend/open_webui/routers/models.py
@@ -35,7 +35,7 @@ log = logging.getLogger(__name__)
 router = APIRouter()
 
 
-def validate_model_id(model_id: str) -> bool:
+def is_valid_model_id(model_id: str) -> bool:
     return model_id and len(model_id) <= 256
 
 
@@ -90,7 +90,7 @@ async def create_new_model(
             detail=ERROR_MESSAGES.MODEL_ID_TAKEN,
         )
 
-    if not validate_model_id(form_data.id):
+    if not is_valid_model_id(form_data.id):
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail=ERROR_MESSAGES.MODEL_ID_TOO_LONG,
@@ -157,7 +157,7 @@ async def import_models(
                 # Here, you can add logic to validate model_data if needed
                 model_id = model_data.get("id")
 
-                if model_id and validate_model_id(model_id):
+                if model_id and is_valid_model_id(model_id):
                     existing_model = Models.get_model_by_id(model_id)
                     if existing_model:
                         # Update existing model
@@ -203,6 +203,10 @@ async def sync_models(
 ###########################
 
 
+class ModelIdForm(BaseModel):
+    id: str
+
+
 # Note: We're not using the typical url path param here, but instead using a query parameter to allow '/' in the id
 @router.get("/model", response_model=Optional[ModelResponse])
 async def get_model_by_id(id: str, user=Depends(get_verified_user)):
@@ -296,12 +300,10 @@ async def toggle_model_by_id(id: str, user=Depends(get_verified_user)):
 
 @router.post("/model/update", response_model=Optional[ModelModel])
 async def update_model_by_id(
-    id: str,
     form_data: ModelForm,
     user=Depends(get_verified_user),
 ):
-    model = Models.get_model_by_id(id)
-
+    model = Models.get_model_by_id(form_data.id)
     if not model:
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
@@ -327,9 +329,9 @@ async def update_model_by_id(
 ############################
 
 
-@router.delete("/model/delete", response_model=bool)
-async def delete_model_by_id(id: str, user=Depends(get_verified_user)):
-    model = Models.get_model_by_id(id)
+@router.post("/model/delete", response_model=bool)
+async def delete_model_by_id(form_data: ModelIdForm, user=Depends(get_verified_user)):
+    model = Models.get_model_by_id(form_data.id)
     if not model:
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
@@ -346,7 +348,7 @@ async def delete_model_by_id(id: str, user=Depends(get_verified_user)):
             detail=ERROR_MESSAGES.UNAUTHORIZED,
         )
 
-    result = Models.delete_model_by_id(id)
+    result = Models.delete_model_by_id(form_data.id)
     return result
 
 
diff --git a/src/lib/apis/models/index.ts b/src/lib/apis/models/index.ts
index 32a7151b5d..a9385088f7 100644
--- a/src/lib/apis/models/index.ts
+++ b/src/lib/apis/models/index.ts
@@ -192,17 +192,14 @@ export const toggleModelById = async (token: string, id: string) => {
 export const updateModelById = async (token: string, id: string, model: object) => {
 	let error = null;
 
-	const searchParams = new URLSearchParams();
-	searchParams.append('id', id);
-
-	const res = await fetch(`${WEBUI_API_BASE_URL}/models/model/update?${searchParams.toString()}`, {
+	const res = await fetch(`${WEBUI_API_BASE_URL}/models/model/update`, {
 		method: 'POST',
 		headers: {
 			Accept: 'application/json',
 			'Content-Type': 'application/json',
 			authorization: `Bearer ${token}`
 		},
-		body: JSON.stringify(model)
+		body: JSON.stringify({ ...model, id })
 	})
 		.then(async (res) => {
 			if (!res.ok) throw await res.json();
@@ -228,16 +225,14 @@ export const updateModelById = async (token: string, id: string, model: object)
 export const deleteModelById = async (token: string, id: string) => {
 	let error = null;
 
-	const searchParams = new URLSearchParams();
-	searchParams.append('id', id);
-
-	const res = await fetch(`${WEBUI_API_BASE_URL}/models/model/delete?${searchParams.toString()}`, {
-		method: 'DELETE',
+	const res = await fetch(`${WEBUI_API_BASE_URL}/models/model/delete`, {
+		method: 'POST',
 		headers: {
 			Accept: 'application/json',
 			'Content-Type': 'application/json',
 			authorization: `Bearer ${token}`
-		}
+		},
+		body: JSON.stringify({ id })
 	})
 		.then(async (res) => {
 			if (!res.ok) throw await res.json();