diff --git a/internal/logic/admin/model.go b/internal/logic/admin/model.go
index 78c0438..cea92b2 100644
--- a/internal/logic/admin/model.go
+++ b/internal/logic/admin/model.go
@@ -306,29 +306,29 @@ func (s *sAdmin) UpdateModel(ctx context.Context, req *v1.ModelUpdateReq) (*v1.M
 		return nil, err
 	}
 
-	// 状态从 active → deprecated 时发送通知并清除缓存
-	if statusChanged && req.Status == "deprecated" && oldModel.Status == "active" {
-		go func() {
-			bgCtx := context.Background()
-			variables := g.Map{
-				"model_name":        oldModel.ModelId,
-				"sunset_date":       "",
-				"replacement_model": req.ReplacementModel,
-			}
-			if req.SunsetDate != nil {
-				variables["sunset_date"] = *req.SunsetDate
-			}
-			engine := common.NewNotificationEngine()
-			if err := engine.SendToAllTenants(bgCtx, "model_deprecated", variables, ""); err != nil {
-				g.Log().Errorf(bgCtx, "[ModelDeprecation] send notification for %s failed: %v", oldModel.ModelId, err)
-			}
-		}()
+	if statusChanged {
+		// 状态变更时清除模型缓存和租户分组缓存
 		relay.NewDataProvider().InvalidateModelCache(oldModel.ModelId)
-	}
+		invalidateTenantsForModel(ctx, req.ID)
 
-	// 状态从 deprecated → active 时清除缓存
-	if statusChanged && req.Status == "active" && oldModel.Status == "deprecated" {
-		relay.NewDataProvider().InvalidateModelCache(oldModel.ModelId)
+		// 状态从 active → deprecated 时额外发送通知
+		if req.Status == "deprecated" && oldModel.Status == "active" {
+			go func() {
+				bgCtx := context.Background()
+				variables := g.Map{
+					"model_name":        oldModel.ModelId,
+					"sunset_date":       "",
+					"replacement_model": req.ReplacementModel,
+				}
+				if req.SunsetDate != nil {
+					variables["sunset_date"] = *req.SunsetDate
+				}
+				engine := common.NewNotificationEngine()
+				if err := engine.SendToAllTenants(bgCtx, "model_deprecated", variables, ""); err != nil {
+					g.Log().Errorf(bgCtx, "[ModelDeprecation] send notification for %s failed: %v", oldModel.ModelId, err)
+				}
+			}()
+		}
 	}
 
 	return nil, nil
diff --git a/internal/logic/admin/model_group.go b/internal/logic/admin/model_group.go
index 8a8064d..d89930d 100644
--- a/internal/logic/admin/model_group.go
+++ b/internal/logic/admin/model_group.go
@@ -346,6 +346,33 @@ func invalidateTenantGroupCache(ctx context.Context, tenantID int64) {
 	common.TenantGroupModelCache.Delete(ctx, fmt.Sprintf("%d", tenantID))
 }
 
+func invalidateTenantsForModel(ctx context.Context, modelID int64) {
+	var groupIDs []struct {
+		GroupId int64 `json:"group_id"`
+	}
+	dao.MdlGroupModels.Ctx(ctx).
+		Where("model_id", modelID).
+		Fields("group_id").
+		Scan(&groupIDs)
+
+	for _, g := range groupIDs {
+		invalidateTenantsInGroup(ctx, g.GroupId)
+	}
+
+	// 同时清除直接分配了该模型的租户缓存（mdl_tenant_models）
+	var tenantIDs []struct {
+		TenantId int64 `json:"tenant_id"`
+	}
+	dao.MdlTenantModels.Ctx(ctx).
+		Where("model_id", modelID).
+		Fields("tenant_id").
+		Scan(&tenantIDs)
+
+	for _, t := range tenantIDs {
+		invalidateTenantGroupCache(ctx, t.TenantId)
+	}
+}
+
 func invalidateTenantsInGroup(ctx context.Context, groupID int64) {
 	var tenants []struct {
 		TenantId int64 `json:"tenant_id"`