Class VercelProvider

Constructor for the VercelProvider.

Get the underlying Vercel AI model instance.

Invoke the Vercel AI model with an array of messages.

Invoke the Vercel AI model with structured output support.

Static factory method to create a Vercel AIProvider from an AI configuration. This method auto-detects the provider and creates the model. Note: Messages from the AI config are not included in the provider - messages should be passed at invocation time via invokeModel().

Create AI metrics information from a Vercel AI response. This method extracts token usage information and success status from Vercel AI responses and returns a LaunchDarkly AIMetrics object. Supports both v4 and v5 field names for backward compatibility.

Deprecated

Use getAIMetricsFromResponse() instead.

Create a Vercel AI model from an AI configuration. This method auto-detects the provider and creates the model instance.

Get AI metrics from a Vercel AI SDK text response This method extracts token usage information and success status from Vercel AI responses and returns a LaunchDarkly AIMetrics object. Supports both v4 and v5 field names for backward compatibility.

Example

const response = await aiConfig.tracker.trackMetricsOf(
  VercelProvider.getAIMetricsFromResponse,
  () => generateText(vercelConfig)
);
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Get AI metrics from a Vercel AI SDK streaming result.

This method waits for the stream to complete, then extracts metrics using totalUsage (preferred for cumulative usage across all steps) or usage if totalUsage is unavailable.

Example

const stream = aiConfig.tracker.trackStreamMetricsOf(
  () => streamText(vercelConfig),
  VercelProvider.getAIMetricsFromStream
);
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Map LaunchDarkly model parameters to Vercel AI SDK parameters.

Parameter mappings:

• max_tokens → maxTokens
• max_completion_tokens → maxOutputTokens
• temperature → temperature
• top_p → topP
• top_k → topK
• presence_penalty → presencePenalty
• frequency_penalty → frequencyPenalty
• stop → stopSequences
• seed → seed

Map LaunchDarkly provider names to LangChain provider names. This method enables seamless integration between LaunchDarkly's standardized provider naming and LangChain's naming conventions.

Map Vercel AI SDK usage data to LaunchDarkly token usage.

Convert an AI configuration to Vercel AI SDK parameters. This static method allows converting an LDAIConfig to VercelAISDKConfig without requiring an instance of VercelProvider.

Throws

if a Vercel AI SDK model cannot be determined from the given provider parameter