LanguageModelStreamPart

Namespace: Vercel.AI.Provider

public abstract class LanguageModelStreamPart

One part of a language-model stream.

Inheritance: object

Derived: FileStreamPart, CustomStreamPart, DocumentSourceStreamPart, ErrorStreamPart, FinishStreamPart, RawStreamPart, ReasoningDeltaStreamPart, ReasoningEndStreamPart, ReasoningStartStreamPart, ResponseMetadataStreamPart, SourceStreamPart, StreamStartStreamPart, TextDeltaStreamPart, TextEndStreamPart, TextStartStreamPart, ToolApprovalRequestStreamPart, ToolCallStreamPart, ToolInputDeltaStreamPart, ToolInputEndStreamPart, ToolInputStartStreamPart, ToolResultStreamPart

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Constructors

LanguageModelStreamPart(string)

protected LanguageModelStreamPart(string type)

Creates a stream part.

Parameters

Name	Type	Description
type	string

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Properties

Chunk

public JsonElement? Chunk { get; }

The provider chunk this part was parsed from, with every field the typed part does not model. It is set only by providers that pass chunks through unchanged, such as the Gateway.

Value: JsonElement?

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Type

public string Type { get; }

Part type.

Value: string

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