diff --git a/apps/web/src/components/ChatView.tsx b/apps/web/src/components/ChatView.tsx
index 87d1303e05e21be4e45e49ea9b779d4a1a54ffa7..bf4fa0ae716451b7b7d91755af931065c8a487ec 100644
--- a/apps/web/src/components/ChatView.tsx
+++ b/apps/web/src/components/ChatView.tsx
@@ -8735,11 +8735,13 @@ export default function ChatView(props: ChatViewProps) {
           interactionMode,
         });
         if (settingsResult._tag === "Failure") return settingsResult;
+        const modelSelection = composerRef.current?.getSendContext().selectedModelSelection;
         const turnResult = await startThreadTurn({
           environmentId,
           input: {
             threadId,
             manualContinuationOfRunId: resumableRunId,
+            ...(modelSelection ? { modelSelection } : {}),
             message: {
               messageId: newMessageId(),
               role: "user",