# modelContainer(for:inMemory:isAutosaveEnabled:isUndoEnabled:onSetup:) Sets the model container in this scene for storing the provided model types, creating a new container if necessary, and also sets a model context for that container in this scene’s environment. ``` @MainActor @preconcurrency func modelContainer(for modelTypes: [any PersistentModel.Type], inMemory: Bool = false, isAutosaveEnabled: Bool = true, isUndoEnabled: Bool = false, onSetup: @escaping (Result) -> Void = { _ in }) -> some Scene ``` ## Parameters `modelTypes` The model types defining the schema used to create the model container. `inMemory` Whether the container should store data only in memory. `isAutosaveEnabled` `true` if autosave is enabled. `isUndoEnabled` use `undoManager` in the scene’s environment to manage undo operations for the model container. `onSetup` A callback that will be invoked when the creation of the container has has succeeded or failed. ## Discussion In this example, `RecipesApp` sets a shared model container to use for all of its windows, configured to store instances of `Recipe` and `Ingredient`: ``` @Model class Recipe { ... } @Model class Ingredient { ... } @main struct RecipesApp: App { var body: some Scene { WindowGroup { RecipesList() } .modelContainer(for: [Recipe.self, Ingredient.self]) } } ``` The environment’s `EnvironmentValues/modelContext` property will be assigned a new context associated with this container. All implicit model context operations in this scene, such as `Query` properties, will use the environment’s context. By default, the container stores its model data persistently on disk. To only store data in memory for the lifetime of the app’s process, pass `true` to the `inMemory:` parameter. The container will only be created once. New values that are passed to the `modelTypes` and `inMemory` parameters after the view is first created will be ignored. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)