The answer includes citations, but one citation does not actually support the sentence — no error appeared. Why?
This is the silent failure of citation grounding: retrieval succeeded, but the model compressed several sources into a claim broader than any cited passage. The URL is valid and the answer sounds authoritative, so normal transport checks pass. The engineering fix is claim-level evidence mapping: require one quote or precise source section per material claim, separate synthesis from quotation, and downgrade unsupported claims instead of allowing citation presence to imply proof.
Is Perplexity MCP better than Brave Search MCP?
They solve different layers. Brave is a retrieval primitive that gives the agent search results; Perplexity adds answer synthesis and citation packaging. Use Brave when you want full control over browsing and extraction, and Perplexity when a grounded research answer with source attribution is the desired artifact.
Can it guarantee current information?
No. Live retrieval improves freshness but does not guarantee that every source is current, correct, or authoritative. Require publication dates and corroborate important claims with primary sources.
How should I use it for SEO research?
Use it to identify current SERP themes, primary references, and content gaps, then independently verify rankings and publishable claims. Never turn a synthesized answer directly into factual copy without reviewing its source passages.