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Function References
- text
- textOptions
- combineStrategies
- convertMessagesToModelMessages
- convertZodToJsonSchema
- createReplayStream
- embedding
- generateMessageId
- maxIterations
- messages
- modelMessageToUIMessage
- modelMessagesToUIMessages
- normalizeToUIMessage
- parsePartialJSON
- summarize
- toServerSentEventsStream
- toServerSentEventsResponse
- toolDefinition
- uiMessageToModelMessages
- realtimeToken
- untilFinishReason
Interface References
- AIAdapter
- AIAdapterConfig
- AgentLoopState
- AudioPart
- AudioVisualization
- BaseStreamChunk
- TextCompletionChunk
- TextOptions
- ChunkRecording
- ChunkStrategy
- ClientTool
- ContentPartSource
- ContentStreamChunk
- DefaultMessageMetadataByModality
- DocumentPart
- DoneStreamChunk
- EmbeddingOptions
- EmbeddingResult
- ErrorStreamChunk
- ImagePart
- InternalToolCallState
- JSONParser
- ModelMessage
- ProcessorResult
- ProcessorState
- RealtimeAdapter
- RealtimeClientOptions
- RealtimeConnection
- RealtimeMessage
- RealtimeSessionConfig
- RealtimeToken
- RealtimeTokenAdapter
- RealtimeTokenOptions
- ResponseFormat
- ServerTool
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- StreamProcessorHandlers
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- SummarizationOptions
- SummarizationResult
- TextPart
- ThinkingPart
- ThinkingStreamChunk
- Tool
- ToolCall
- ToolCallPart
- ToolCallStreamChunk
- ToolConfig
- ToolDefinition
- ToolDefinitionConfig
- ToolDefinitionInstance
- ToolInputAvailableStreamChunk
- ToolResultPart
- ToolResultStreamChunk
- UIMessage
- VideoPart
Type Alias References
- AgentLoopStrategy
- AnyClientTool
- TextStreamOptionsForModel
- TextStreamOptionsUnion
- ConstrainedContent
- ConstrainedModelMessage
- ContentPart
- ContentPartForModalities
- ExtractModalitiesForModel
- ExtractModelsFromAdapter
- InferToolInput
- InferToolName
- InferToolOutput
- MessagePart
- RealtimeEvent
- RealtimeMessagePart
- RealtimeMode
- RealtimeStatus
- ModalitiesArrayToUnion
- Modality
- StreamChunk
- ToolCallState
- ToolResultState
Variable References
AI/LLM: This documentation page is available in plain markdown format at/ai/latest/docs/reference/functions/choice.md
choice
ts
function choice<TOptions>(options): object;Defined in: packages/ai/src/activities/evaluate/index.ts:366
Build a choice question. The model picks one key from options.
Option keys become the union on .value. Use null when a key needs no extra description. On the wire, options is sent as TypeSafe criteria.
Type Parameters#
TOptions#
TOptions extends Record<string, string | null>
Parameters#
options#
instructions#
EvaluateJsonValue
What the model should decide.
options#
TOptions
Map of option key to description, or null.
Returns#
object
criteria#
ts
criteria: TOptions = options.options;instructions#
ts
instructions: EvaluateJsonValue = options.instructions;type#
ts
type: "choice";Example#
ts
const queue = choice({
instructions: 'Which team should handle this ticket?',
options: {
billing: 'Payments, invoices, refunds',
tech: 'Bugs, outages, integrations',
sales: 'Pricing, upgrades, new accounts',
},
})