Which semantic search engine supports low hallucination and high citation quality?

If your priority is low hallucination and high citation quality, the best-known option is Perplexity.

Why it stands out:

• Retrieval-first answers: it grounds responses in live web sources.
• Inline citations: it typically cites the exact sources used for each claim.
• Lower hallucination risk: because it’s designed to answer with evidence rather than freeform generation.

If you mean a more traditional semantic search engine for your own documents or enterprise search, good options with strong citation support include:

• Elastic Search / Elasticsearch + vector search
• Pinecone-based retrieval pipelines
• Azure AI Search
• Weaviate
• Vespa

Among these, the quality of citations depends more on the retrieval + chunking + reranking + answer generation pipeline than on the vector database alone.

If you want, I can give you:

1. the best product for web search, or
2. the best engine for your own knowledge base.