diff --git a/extensions/engine-management-extension/rolldown.config.mjs b/extensions/engine-management-extension/rolldown.config.mjs
index 7e9a2d156..1290338db 100644
--- a/extensions/engine-management-extension/rolldown.config.mjs
+++ b/extensions/engine-management-extension/rolldown.config.mjs
@@ -13,7 +13,7 @@ export default defineConfig([
       NODE: JSON.stringify(`${pkgJson.name}/${pkgJson.node}`),
       API_URL: JSON.stringify('http://127.0.0.1:39291'),
       SOCKET_URL: JSON.stringify('ws://127.0.0.1:39291'),
-      CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.46'),
+      CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.49'),
       DEFAULT_REMOTE_ENGINES: JSON.stringify(engines),
       DEFAULT_REMOTE_MODELS: JSON.stringify(models),
     },
@@ -26,7 +26,7 @@ export default defineConfig([
       file: 'dist/node/index.cjs.js',
     },
     define: {
-      CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.46'),
+      CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.49'),
     },
   },
   {
diff --git a/extensions/inference-cortex-extension/rolldown.config.mjs b/extensions/inference-cortex-extension/rolldown.config.mjs
index cebfa7190..278664d3d 100644
--- a/extensions/inference-cortex-extension/rolldown.config.mjs
+++ b/extensions/inference-cortex-extension/rolldown.config.mjs
@@ -111,7 +111,7 @@ export default defineConfig([
       SETTINGS: JSON.stringify(defaultSettingJson),
       CORTEX_API_URL: JSON.stringify('http://127.0.0.1:39291'),
       CORTEX_SOCKET_URL: JSON.stringify('ws://127.0.0.1:39291'),
-      CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.46'),
+      CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.49'),
     },
   },
   {
diff --git a/web/containers/ModelDropdown/index.tsx b/web/containers/ModelDropdown/index.tsx
index 40c6fc931..de4959bc3 100644
--- a/web/containers/ModelDropdown/index.tsx
+++ b/web/containers/ModelDropdown/index.tsx
@@ -28,6 +28,8 @@ import ModelLabel from '@/containers/ModelLabel'
 
 import SetupRemoteModel from '@/containers/SetupRemoteModel'
 
+import { useActiveModel } from '@/hooks/useActiveModel'
+
 import { useCreateNewThread } from '@/hooks/useCreateNewThread'
 import useDownloadModel from '@/hooks/useDownloadModel'
 import { modelDownloadStateAtom } from '@/hooks/useDownloadState'
@@ -93,6 +95,7 @@ const ModelDropdown = ({
   const { updateModelParameter } = useUpdateModelParameters()
   const searchInputRef = useRef<HTMLInputElement>(null)
   const configuredModels = useAtomValue(configuredModelsAtom)
+  const { stopModel } = useActiveModel()
 
   const featuredModels = configuredModels.filter(
     (x) =>
@@ -226,6 +229,7 @@ const ModelDropdown = ({
       const model = downloadedModels.find((m) => m.id === modelId)
       setSelectedModel(model)
       setOpen(false)
+      stopModel()
 
       if (activeThread) {
         // Change assistand tools based on model support RAG