diff --git a/api/server/services/Endpoints/agents/initialize.js b/api/server/services/Endpoints/agents/initialize.js
index 08f631c3d2..16ff7ffc2f 100644
--- a/api/server/services/Endpoints/agents/initialize.js
+++ b/api/server/services/Endpoints/agents/initialize.js
@@ -441,6 +441,7 @@ const initializeClient = async ({ req, res, signal, endpointOption }) => {
     endpointType: endpointOption.endpointType,
     resendFiles: primaryConfig.resendFiles ?? true,
     maxContextTokens: primaryConfig.maxContextTokens,
+    modelLabel: endpointOption.model_parameters?.modelLabel,
     endpoint: isEphemeralAgentId(primaryConfig.id) ? primaryConfig.endpoint : EModelEndpoint.agents,
   });
 
diff --git a/client/src/hooks/Conversations/useGetSender.ts b/client/src/hooks/Conversations/useGetSender.ts
index cced4ca4fe..51d03b0db9 100644
--- a/client/src/hooks/Conversations/useGetSender.ts
+++ b/client/src/hooks/Conversations/useGetSender.ts
@@ -1,15 +1,21 @@
 import { useCallback } from 'react';
 import { getResponseSender } from 'librechat-data-provider';
 import type { TEndpointOption, TEndpointsConfig } from 'librechat-data-provider';
-import { useGetEndpointsQuery } from '~/data-provider';
+import { useGetEndpointsQuery, useGetStartupConfig } from '~/data-provider';
 
 export default function useGetSender() {
   const { data: endpointsConfig = {} as TEndpointsConfig } = useGetEndpointsQuery();
+  const { data: startupConfig } = useGetStartupConfig();
   return useCallback(
     (endpointOption: TEndpointOption) => {
       const { modelDisplayLabel } = endpointsConfig?.[endpointOption.endpoint ?? ''] ?? {};
-      return getResponseSender({ ...endpointOption, modelDisplayLabel });
+      let { modelLabel } = endpointOption;
+      if (!modelLabel && endpointOption.spec) {
+        const spec = startupConfig?.modelSpecs?.list?.find((s) => s.name === endpointOption.spec);
+        modelLabel = spec?.preset?.modelLabel ?? spec?.label ?? null;
+      }
+      return getResponseSender({ ...endpointOption, modelLabel, modelDisplayLabel });
     },
-    [endpointsConfig],
+    [endpointsConfig, startupConfig],
   );
 }