diff --git a/src/stores/useModelStore.ts b/src/stores/useModelStore.ts
index 1505e5b..b3ce352 100644
--- a/src/stores/useModelStore.ts
+++ b/src/stores/useModelStore.ts
@@ -339,17 +339,23 @@ export const useModelStore = create<ModelStore>((set, get) => ({
   fineTuning: { ...defaultFineTuning },
   setFineTuning: (ft) => set((state) => {
     const newFT = { ...state.fineTuning, ...ft };
-    // Also write to the active model's fineTuning
-    const models = state.activeModelId
-      ? state.models.map(m => m.id === state.activeModelId ? { ...m, fineTuning: newFT } : m)
+    const activeId = state.activeModelId;
+    const models = activeId
+      ? state.models.map(m => m.id === activeId ? { ...m, fineTuning: newFT } : m)
       : state.models;
+    // Persiste placement por fileName para sobreviver à saída/re-entrada do AR.
+    const active = models.find(m => m.id === activeId);
+    if (active) savePlacement(active.fileName, newFT);
     return { fineTuning: newFT, models };
   }),
   resetFineTuning: () => set((state) => {
     const reset = { ...defaultFineTuning };
-    const models = state.activeModelId
-      ? state.models.map(m => m.id === state.activeModelId ? { ...m, fineTuning: reset } : m)
+    const activeId = state.activeModelId;
+    const models = activeId
+      ? state.models.map(m => m.id === activeId ? { ...m, fineTuning: reset } : m)
       : state.models;
+    const active = models.find(m => m.id === activeId);
+    if (active) savePlacement(active.fileName, reset);
     return { fineTuning: reset, models };
   }),