---
title: LanguageModelError.ContextSizeExceeded
framework: foundationmodels
role: symbol
role_heading: Structure
path: foundationmodels/languagemodelerror/contextsizeexceeded
---

# LanguageModelError.ContextSizeExceeded

Information about exceeding the context window size.

## Declaration

```swift
struct ContextSizeExceeded
```

## Topics

### Creating an error instance

- [init(contextSize:tokenCount:debugDescription:metadata:)](foundationmodels/languagemodelerror/contextsizeexceeded/init(contextsize:tokencount:debugdescription:metadata:).md)

### Inspecting context size errors

- [metadata](foundationmodels/languagemodelerror/contextsizeexceeded/metadata.md)
- [tokenCount](foundationmodels/languagemodelerror/contextsizeexceeded/tokencount.md)
- [contextSize](foundationmodels/languagemodelerror/contextsizeexceeded/contextsize.md)
- [debugDescription](foundationmodels/languagemodelerror/contextsizeexceeded/debugdescription.md)

## Relationships

### Conforms To

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

## See Also

### Exceeded context size error

- [LanguageModelError.contextSizeExceeded(_:)](foundationmodels/languagemodelerror/contextsizeexceeded(_:).md)