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feat(community): perplexity add web search options #8328

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feat(community): perplexity add web search options #8328

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454eae6
feat(community): perplexity add web search options
anadi45 Jun 8, 2025
066fe99
Merge branch 'main' into perplexity-web-search-options
anadi45 Jun 12, 2025
90b19ed
Merge branch 'main' into perplexity-web-search-options
anadi45 Jun 19, 2025
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35 changes: 35 additions & 0 deletions libs/langchain-community/src/chat_models/perplexity.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,21 @@ export interface PerplexityChatInput extends BaseChatModelParams {

/** Timeout for requests to Perplexity */
timeout?: number;

/** Controls the search mode used for the request. When set to 'academic', results will prioritize scholarly sources. */
searchMode?: "academic" | "web";

/** Controls how much computational effort the AI dedicates to each query for deep research models. Only applicable for sonar-deep-research. */
reasoningEffort?: "low" | "medium" | "high";

/** Filters search results to only include content published after this date. */
searchAfterDateFilter?: string;

/** Filters search results to only include content published before this date. */
searchBeforeDateFilter?: string;

/** Configuration for using web search in model responses. */
webSearchOptions?: Record<string, unknown>;
}

export interface PerplexityChatCallOptions extends BaseChatModelCallOptions {
Expand Down Expand Up @@ -147,6 +162,16 @@ export class ChatPerplexity

frequencyPenalty?: number;

searchMode?: "academic" | "web";

reasoningEffort?: "low" | "medium" | "high";

searchAfterDateFilter?: string;

searchBeforeDateFilter?: string;

webSearchOptions?: Record<string, unknown>;

private client: OpenAI;

constructor(fields: PerplexityChatInput) {
Expand All @@ -170,6 +195,11 @@ export class ChatPerplexity
fields?.searchDomainFilter ?? this.searchDomainFilter;
this.searchRecencyFilter =
fields?.searchRecencyFilter ?? this.searchRecencyFilter;
this.searchMode = fields?.searchMode;
this.reasoningEffort = fields?.reasoningEffort;
this.searchAfterDateFilter = fields?.searchAfterDateFilter;
this.searchBeforeDateFilter = fields?.searchBeforeDateFilter;
this.webSearchOptions = fields?.webSearchOptions;

if (!this.apiKey) {
throw new Error("Perplexity API key not found");
Expand Down Expand Up @@ -203,6 +233,11 @@ export class ChatPerplexity
response_format: options?.response_format,
search_domain_filter: this.searchDomainFilter,
search_recency_filter: this.searchRecencyFilter,
search_mode: this.searchMode,
reasoning_effort: this.reasoningEffort,
search_after_date_filter: this.searchAfterDateFilter,
search_before_date_filter: this.searchBeforeDateFilter,
web_search_options: this.webSearchOptions,
};
}

Expand Down