diff --git a/src/backend/langflow/api/v1/chat.py b/src/backend/langflow/api/v1/chat.py
index b700109b4..c7f344406 100644
--- a/src/backend/langflow/api/v1/chat.py
+++ b/src/backend/langflow/api/v1/chat.py
@@ -3,7 +3,6 @@ from typing import Optional
 
 from fastapi import (
     APIRouter,
-    Body,
     Depends,
     HTTPException,
     WebSocket,
@@ -26,7 +25,6 @@ from langflow.api.v1.schemas import (
     VerticesOrderResponse,
 )
 from langflow.graph.graph.base import Graph
-from langflow.processing.process import process_tweaks_on_graph
 from langflow.services.auth.utils import (
     get_current_active_user,
     get_current_user_for_websocket,
@@ -318,12 +316,11 @@ async def build_vertex(
     vertex_id: str,
     chat_service: "ChatService" = Depends(get_chat_service),
     current_user=Depends(get_current_active_user),
-    tweaks: dict = Body(None),
-    inputs: dict = Body(None),
 ):
     """Build a vertex instead of the entire graph."""
     start_time = time.perf_counter()
     try:
+        start_time = time.perf_counter()
         cache = chat_service.get_cache(flow_id)
         if not cache:
             # If there's no cache
@@ -337,10 +334,8 @@ async def build_vertex(
             graph = cache.get("result")
         result_dict = {}
         duration = ""
-        if tweaks:
-            graph = process_tweaks_on_graph(graph, tweaks)
-        if not (vertex := graph.get_vertex(vertex_id)):
-            raise ValueError(f"Invalid vertex {vertex_id}")
+
+        vertex = graph.get_vertex(vertex_id)
         try:
             if not vertex.pinned or not vertex._built:
                 await vertex.build(user_id=current_user.id)
@@ -364,7 +359,7 @@ async def build_vertex(
                 raise ValueError(f"No result found for vertex {vertex_id}")
             chat_service.set_cache(flow_id, graph)
         except Exception as exc:
-            params = str(exc)
+            params = repr(exc)
             valid = False
             result_dict = ResultData(results={})
             artifacts = {}
diff --git a/src/backend/langflow/graph/graph/base.py b/src/backend/langflow/graph/graph/base.py
index 370c45461..c52991632 100644
--- a/src/backend/langflow/graph/graph/base.py
+++ b/src/backend/langflow/graph/graph/base.py
@@ -7,12 +7,8 @@ from langflow.graph.graph.constants import lazy_load_vertex_dict
 from langflow.graph.graph.utils import process_flow
 from langflow.graph.schema import InterfaceComponentTypes
 from langflow.graph.vertex.base import Vertex
-from langflow.graph.vertex.types import (
-    ChatVertex,
-    FileToolVertex,
-    LLMVertex,
-    ToolkitVertex,
-)
+from langflow.graph.vertex.types import (ChatVertex, FileToolVertex, LLMVertex,
+                                         ToolkitVertex)
 from langflow.interface.tools.constants import FILE_TOOLS
 from langflow.utils import payload
 from loguru import logger
@@ -216,7 +212,10 @@ class Graph:
 
     def get_vertex(self, vertex_id: str) -> Union[None, Vertex]:
         """Returns a vertex by id."""
-        return self.vertex_map.get(vertex_id)
+        try:
+            return self.vertex_map.get(vertex_id)
+        except KeyError:
+            raise ValueError(f"Vertex {vertex_id} not found")
 
     def get_vertex_edges(self, vertex_id: str) -> List[ContractEdge]:
         """Returns a list of edges for a given vertex."""
diff --git a/src/backend/langflow/graph/vertex/types.py b/src/backend/langflow/graph/vertex/types.py
index 8d23059ce..cb4684d08 100644
--- a/src/backend/langflow/graph/vertex/types.py
+++ b/src/backend/langflow/graph/vertex/types.py
@@ -2,6 +2,7 @@ import ast
 import json
 from typing import Callable, Dict, List, Optional, Union
 
+import yaml
 from langchain_core.messages import AIMessage
 from langflow.graph.utils import UnbuiltObject, flatten_list
 from langflow.graph.vertex.base import StatefulVertex, StatelessVertex
@@ -343,8 +344,11 @@ class ChatVertex(StatelessVertex):
                 return str(task.info)
             else:
                 return f"Task {self.task_id} is not running"
-        if self.artifacts and "repr" in self.artifacts:
-            return self.artifacts["repr"] or super()._built_object_repr()
+        if self.artifacts:
+            # dump as a yaml string
+            yaml_str = yaml.dump(self.artifacts, default_flow_style=False)
+            return yaml_str
+        return super()._built_object_repr()
 
     async def _run(self, *args, **kwargs):
         if self.is_interface_component:
diff --git a/src/frontend/src/components/headerComponent/components/menuBar/index.tsx b/src/frontend/src/components/headerComponent/components/menuBar/index.tsx
index cca170067..73331fb27 100644
--- a/src/frontend/src/components/headerComponent/components/menuBar/index.tsx
+++ b/src/frontend/src/components/headerComponent/components/menuBar/index.tsx
@@ -13,6 +13,8 @@ import FlowSettingsModal from "../../../../modals/flowSettingsModal";
 import useAlertStore from "../../../../stores/alertStore";
 import useFlowStore from "../../../../stores/flowStore";
 import useFlowsManagerStore from "../../../../stores/flowsManagerStore";
+import { cn } from "../../../../utils/utils";
+import Tooltip from "../../../TooltipComponent";
 import IconComponent from "../../../genericIconComponent";
 import { Button } from "../../../ui/button";
 
@@ -26,6 +28,7 @@ export const MenuBar = ({
   const setErrorData = useAlertStore((state) => state.setErrorData);
   const undo = useFlowsManagerStore((state) => state.undo);
   const redo = useFlowsManagerStore((state) => state.redo);
+  const saveLoading = useFlowsManagerStore((state) => state.saveLoading);
   const [openSettings, setOpenSettings] = useState(false);
   const n = useFlowStore((state) => state.nodes);
 
@@ -112,6 +115,27 @@ export const MenuBar = ({
           setOpen={setOpenSettings}
         ></FlowSettingsModal>
       </div>
+      <Tooltip
+        title={
+          "Last saved at " +
+          new Date(currentFlow.updated_at ?? "").toLocaleString("en-US", {
+            hour: "numeric",
+            minute: "numeric",
+            second: "numeric",
+          })
+        }
+      >
+        <div className="flex items-center gap-1.5 text-sm text-muted-foreground">
+          <IconComponent
+            name={saveLoading ? "Loader2" : "CheckCircle2"}
+            className={cn(
+              "h-4 w-4",
+              saveLoading ? "animate-spin" : "animate-wiggle"
+            )}
+          />
+          {saveLoading ? "Saving..." : "Saved"}
+        </div>
+      </Tooltip>
     </div>
   ) : (
     <></>
diff --git a/src/frontend/src/constants/constants.ts b/src/frontend/src/constants/constants.ts
index b9422efab..eeac6d060 100644
--- a/src/frontend/src/constants/constants.ts
+++ b/src/frontend/src/constants/constants.ts
@@ -681,4 +681,4 @@ export const LANGFLOW_SUPPORTED_TYPES = new Set([
 export const priorityFields = new Set(["code", "template"]);
 
 export const INPUT_TYPES = new Set(["ChatInput", "TextInput"]);
-export const OUTPUT_TYPES = new Set(["ChatOutput"]);
+export const OUTPUT_TYPES = new Set(["ChatOutput",]);
diff --git a/src/frontend/src/stores/flowsManagerStore.ts b/src/frontend/src/stores/flowsManagerStore.ts
index 4a64b3125..3b4640b21 100644
--- a/src/frontend/src/stores/flowsManagerStore.ts
+++ b/src/frontend/src/stores/flowsManagerStore.ts
@@ -52,6 +52,7 @@ const useFlowsManagerStore = create<FlowsManagerStoreType>((set, get) => ({
     });
   },
   currentFlow: undefined,
+  saveLoading: false,
   isLoading: true,
   setIsLoading: (isLoading: boolean) => set({ isLoading }),
   refreshFlows: () => {
@@ -82,7 +83,7 @@ const useFlowsManagerStore = create<FlowsManagerStoreType>((set, get) => ({
     if (saveTimeoutId) {
       clearTimeout(saveTimeoutId);
     }
-
+    set({ saveLoading: true });
     // Set up a new timeout.
     saveTimeoutId = setTimeout(() => {
       if (get().currentFlow) {
@@ -94,6 +95,7 @@ const useFlowsManagerStore = create<FlowsManagerStoreType>((set, get) => ({
     }, 300); // Delay of 300ms.
   },
   saveFlow: (flow: FlowType, silent?: boolean) => {
+    set({ saveLoading: true })
     return new Promise<void>((resolve, reject) => {
       updateFlowInDatabase(flow)
         .then((updatedFlow) => {
@@ -115,6 +117,7 @@ const useFlowsManagerStore = create<FlowsManagerStoreType>((set, get) => ({
             //update tabs state
 
             resolve();
+            set({ saveLoading: false })
           }
         })
         .catch((err) => {
diff --git a/src/frontend/src/stores/storeStore.tsx b/src/frontend/src/stores/storeStore.tsx
index 43d16c177..2d519e21a 100644
--- a/src/frontend/src/stores/storeStore.tsx
+++ b/src/frontend/src/stores/storeStore.tsx
@@ -17,21 +17,3 @@ export const useStoreStore = create<StoreStoreType>((set) => ({
 checkHasStore().then((res) => {
   useStoreStore.setState({ hasStore: res?.enabled ?? false });
 });
-
-const fetchApiData = async () => {
-  useStoreStore.setState({ loadingApiKey: true });
-  try {
-    const res = await checkHasApiKey();
-
-    useStoreStore.setState({
-      loadingApiKey: false,
-      validApiKey: res?.is_valid ?? false,
-      hasApiKey: res?.has_api_key ?? false,
-    });
-  } catch (e) {
-    useStoreStore.setState({ loadingApiKey: false });
-    console.log(e);
-  }
-};
-
-fetchApiData();
diff --git a/src/frontend/src/types/flow/index.ts b/src/frontend/src/types/flow/index.ts
index 5f2ed1dc4..127e1a704 100644
--- a/src/frontend/src/types/flow/index.ts
+++ b/src/frontend/src/types/flow/index.ts
@@ -10,6 +10,8 @@ export type FlowType = {
   style?: FlowStyleType;
   is_component?: boolean;
   last_tested_version?: string;
+  updated_at?: string;
+  date_created?: string;
   parent?: string;
 };
 
diff --git a/src/frontend/src/types/zustand/flowsManager/index.ts b/src/frontend/src/types/zustand/flowsManager/index.ts
index 2a20c20d8..471d4cf17 100644
--- a/src/frontend/src/types/zustand/flowsManager/index.ts
+++ b/src/frontend/src/types/zustand/flowsManager/index.ts
@@ -7,6 +7,7 @@ export type FlowsManagerStoreType = {
   currentFlow: FlowType | undefined;
   currentFlowId: string;
   setCurrentFlowId: (currentFlowId: string) => void;
+  saveLoading: boolean;
   isLoading: boolean;
   setIsLoading: (isLoading: boolean) => void;
   refreshFlows: () => Promise<void>;