BLACKBOX.AI

Perplexity AI

Perplexity is a free AI-powered answer engine that provides accurate, trusted, and real-time answers to any question.

Scite.ai

Researchers around the world use Scite to better understand research, uncover debates, ensure they are citing reliable studies, and improve their writing.

Semantic Scholar

Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research.

WolframAlpha

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music鈥