Engine
Perplexity
Short answer
Perplexity is built as an answer engine first: every response is grounded in retrieved web sources and shown with inline citations. This transparency makes it especially valuable for AI visibility measurement, because you can directly observe whether your domain is cited and how prominently.
Because Perplexity's API closely mirrors its consumer product, both use the same underlying Sonar engine with live web access and citations, it offers the highest-fidelity read among API-accessible engines. That is why it is often treated as the primary and most reliable citation engine in visibility tools.
DeepLexa uses Perplexity as its primary citation engine, since its API most faithfully reflects what real users see.
How DeepLexa helps
DeepLexa relies on Perplexity as its primary citation engine because its API closely matches the real consumer product.
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