Perplexity

Multi-model AI search and enterprise research agents.

You.com is an AI search and answers product offering multi-model chat over OpenAI, Anthropic, and Google models on web and mobile. It has shifted toward enterprise with ARI, a research agent that synthesizes cited reports across hundreds of sources, alongside Search and Research APIs for developers.

Multilingual AI search that turns answers into slides and mind maps.

An AI search and answer engine built around multilingual research — it searches across 25+ languages and synthesizes cited answers. Beyond text, Felo can generate editable presentations (AI PPT), mind maps, and agent workflows from a single query, making it a research-to-output tool rather than a pure search box.

Neural search API. Find pages by meaning, not keywords.

Semantic search engine that indexes the open web with embeddings — pass a description, get matching pages. Strong for research-style queries and find-similar workflows; formerly known as Metaphor.

Paid, ad-free search engine with a built-in multi-model AI assistant.

Kagi is a subscription-based, ad-free search engine that puts result quality and privacy ahead of advertising. Every paid plan now includes Kagi Assistant, which lets you chat with leading models from OpenAI, Anthropic, Google, Mistral, and others against a fair-use token budget. Kagi also ships features like the Universal Summarizer and customizable result ranking.