Research

AI-personalized news reader from Instagram co-founders, closed in 2024

Microsoft web search API widely used to ground AI apps, retired Aug 2025

AI academic search engine that answers with peer-reviewed evidence

AI research assistant for finding and analyzing academic papers

Ad-free, AI-answer search engine that shut down in June 2023

Google source-grounded research notebook with audio overviews

AI answer engine that searches the web and cites its sources

AI homework-help app absorbed into Google Lens in 2024