5 Online Search companies

Perplexity is an AI-powered answer engine that provides accurate, real-time answers to questions backed by credible sources and citations.

Serverless vector and full-text search database on object storage with tiered caching for production AI retrieval at scale.

Open-source vector database for semantic search, RAG, and agentic AI workflows with hybrid search and embeddings support.

Tests.com is an online platform offering practice tests and test-preparation resources, using an email-based support model to maintain low pricing.

Parallel Web Systems builds web search and research APIs purpose-built for AI agents, providing production-grade infrastructure that outperforms humans and lead…