LanguageModelCallEndEvent

Namespace: Vercel.AI

public sealed class LanguageModelCallEndEvent

Passed to OnLanguageModelCallEnd after a provider model call returns.

Inheritance: object

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Constructors

LanguageModelCallEndEvent(string, string, FinishReason, LanguageModelUsage, IReadOnlyList<GeneratedContent>, string?, JsonElement?, TimeSpan)

public LanguageModelCallEndEvent(string provider, string modelId, FinishReason finishReason, LanguageModelUsage usage, IReadOnlyList<GeneratedContent> content, string? responseId, JsonElement? providerMetadata, TimeSpan responseTime)

Creates an event.

Parameters

Name	Type	Description
provider	string
modelId	string
finishReason	FinishReason
usage	LanguageModelUsage
content	IReadOnlyList<GeneratedContent>
responseId	string
providerMetadata	JsonElement?
responseTime	TimeSpan

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Properties

Content

public IReadOnlyList<GeneratedContent> Content { get; }

Content the model generated, including its tool calls.

Value: IReadOnlyList<GeneratedContent>

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FinishReason

public FinishReason FinishReason { get; }

Finish reason.

Value: FinishReason

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ModelId

public string ModelId { get; }

Model id the provider reported, or the requested one when it reported none.

Value: string

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Provider

public string Provider { get; }

Provider id of the model that was called.

Value: string

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ProviderMetadata

public JsonElement? ProviderMetadata { get; }

Provider metadata of the response, when the provider sent any.

Value: JsonElement?

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ResponseId

public string? ResponseId { get; }

Provider response id.

Value: string

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ResponseTime

public TimeSpan ResponseTime { get; }

Time the model call took. Maps to performance.responseTimeMs.

Value: TimeSpan

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Usage

public LanguageModelUsage Usage { get; }

Usage of this model call.

Value: LanguageModelUsage

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