Does the API calculate prompt volatility?

No. Compare repeated answers and source sets in your own application. The API supplies collected provider outputs; this analysis belongs in your application.

How should failed or empty collections be handled?

Inspect per-target failedRuns and each successful run identity. Empty sources or null fields are valid output; a missing failed run is not an empty successful answer. A completed job can contain failed collections.

Customer-built analysis

Perplexity: prompt volatility

Compare repeated answers and source sets in your own application.

Collection target: perplexity. This is customer-built analysis, not a computed API response field.

Build this analysis in your application

Repeated collections can help measure changes in text, brand presence and source overlap. For example, Jaccard similarity compares the intersection and union of two source sets; decide how to handle two empty sets before aggregating.

Customer-built analysis

The API returns individual successful runs and failedRuns, not volatility scores or recommended sample sizes. Failed collection is not evidence that an answer changed.

The perplexity target returns text, markdown, pageUrl and sources with the successful run identity and capture time. Source lists may be empty and response fields may be null. Perplexity may use operator-configured sessions. Availability depends on deployment configuration and provider behavior; no response or citation count is guaranteed.

Collected input for your analysis

These are illustrative successful run excerpts, not full result files or calculated metrics. Submit POST /v1/crawl-jobs, track completion, then download the authenticated result. Outputs depend on the target; a chatbot has no news articles or Google position fields.

{
  "runNumber": 1,
  "runTaskId": "9a7536e7-b610-420a-a34c-5f829956f4d3",
  "status": "completed",
  "capturedAt": "2026-10-09T10:01:00.000Z",
  "text": "Illustrative captured answer text.",
  "markdown": null,
  "pageUrl": "https://www.perplexity.ai/",
  "sources": []
}

Illustrative provider output. Empty lists and null fields are valid; inspect failedRuns in the result file.

Full result format and failed-run handling →

Prompt volatility FAQ

Does the API calculate prompt volatility?: No. Compare repeated answers and source sets in your own application. The API supplies collected provider outputs; this analysis belongs in your application.
How should failed or empty collections be handled?: Inspect per-target failedRuns and each successful run identity. Empty sources or null fields are valid output; a missing failed run is not an empty successful answer. A completed job can contain failed collections.

Use collected data to build your own reporting and analysis. Our team arranges API access and follows up with next steps.

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