AI answer engine that searches the web and responds with cited sources — a research-first alternative to traditional search. Free tier includes standard searches; Pro unlocks advanced models.
FreemiumFree planAPIGeneral-purpose

AI research agent that chats with PDFs, generates literature reviews, and provides citation-backed answers, with a free tier for basic research tasks.
AI answer engine that searches the web and responds with cited sources — a research-first alternative to traditional search. Free tier includes standard searches; Pro unlocks advanced models.
Free AI tool that summarizes text, PDFs, Word docs, PPTs, and videos using NLP, with a free tier of 30 credits and support for 50+ languages.
Open-source AI tool for screening and labeling literature.