@ai-sdk/perplexity/src/map-perplexity-finish-reason.ts

The **[Perplexity provider](https://ai-sdk.dev/providers/ai-sdk-providers/perplexity)** for the [AI SDK](https://ai-sdk.dev/docs) contains language model support for Perplexity's Sonar API - a powerful answer engine with real-time web search capabilities.

import { LanguageModelV3FinishReason } from '@ai-sdk/provider';

export function mapPerplexityFinishReason(
  finishReason: string | null | undefined,
): LanguageModelV3FinishReason['unified'] {
  switch (finishReason) {
    case 'stop':
    case 'length':
      return finishReason;
    default:
      return 'other';
  }
}