Perplexity: Sonar ProModel25/100 via “source attribution and citation generation”
Note: Sonar Pro pricing includes Perplexity search pricing. See [details here](https://docs.perplexity.ai/guides/pricing#detailed-pricing-breakdown-for-sonar-reasoning-pro-and-sonar-pro) For enterprises seeking more advanced capabilities, the Sonar Pro API can handle in-depth, multi-step queries wit...
Unique: Generates structured citation metadata (URL, title, relevance score) as first-class output rather than inline footnotes, enabling flexible presentation and programmatic access to source information. Uses attention-based source attribution to map generated tokens back to contributing search results, providing fine-grained provenance tracking.
vs others: More transparent than ChatGPT's web search because citations are structured data with relevance scores, not just URLs appended to responses, enabling applications to verify and audit the factual basis of claims programmatically.