---
title: SystemLanguageModel.Executor
framework: Foundation Models
role: symbol
role_heading: Structure
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, visionOS 27.0+]
path: foundationmodels/systemlanguagemodel/executor
---

# SystemLanguageModel.Executor

An executor that responds to session requests using the on-device system model.

## Declaration

```swift
struct Executor
```

## Topics

### Type Aliases

- [SystemLanguageModel.Executor.Model](foundationmodels/systemlanguagemodel/executor/model.md)

### Default Implementations

- [LanguageModelExecutor Implementations](foundationmodels/systemlanguagemodel/executor/languagemodelexecutor-implementations.md)

## Relationships

### Conforms To

- [LanguageModelExecutor](foundationmodels/languagemodelexecutor.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)