Perplexity Photon Speeds Retrieval but Does Not Explain Citations
Perplexity’s Photon infrastructure and Fast Search mode change retrieval speed and cost. Neither explains which sources become citations, so a paired benchmark is still required.
Topic tag · AEO & AI Search
How answer systems present sources, how claims map to citations, and how citation quality is measured.
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Perplexity’s Photon infrastructure and Fast Search mode change retrieval speed and cost. Neither explains which sources become citations, so a paired benchmark is still required.
A controlled AI-search replay found more citation markers for structured source text, but no clear gain in whether a source was cited at all. Here is what publishers should measure.
Four recent papers expose separate failure points between retrieval and a trustworthy AI citation. SearchEngineAnswer reproduced PageRecall’s public tier-0 checks and built a claim-level audit ledger.
A 960-answer experiment and a separate B2B panel show why AI citations vary by engine, prompt type and measurement unit. Their percentages should not be pooled.
A multi-source RAG attack made incorrect answers cite trusted evidence. Source-deletion tests reveal which document actually drove the claim.
A causal replay found that structured rendering increased citation count, while its effect on whether a source was cited at all remained inconclusive.
A 171,264-conversation study shows that four AI platforms differ at every search stage, from deciding to browse through selecting citations.
A 30,000-output study finds retrieval drives most variation while Reddit Answers favors early, top-level and more formal comments in its selected evidence.
A 190-million-document benchmark shows why retrieval recall, unique evidence coverage and downstream citations must be measured separately.
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