Top search AI tools

AI Agent

NotebookLM (notebooklm.google) is Google's source-grounded AI research assistant and project workspace powered by Gemini. It acts as an intelligent notebook that synthesizes, answers questions, and transforms user-uploaded documents and web sources with strict citations and near-zero AI hallucination.

Research

Anara (formerly Unriddle AI) is an AI-powered research workspace and scientific literature analysis platform that helps researchers, academics, and R&D teams search academic databases, cross-analyze complex PDF documents, and write papers with verified source citations.

Search Engine

Refsee is a visual research and creative workspace for discovering video references by scene, color, framing, title, or feeling. It helps filmmakers and creative professionals find relevant frames, organize inspiration into moodboards, and transform visual references into original creative concepts using AI-powered image, video, avatar, and editing features.

Identity Check

PimEyes is an AI facial recognition reverse search engine and digital risk protection platform that scans billions of publicly accessible web images to identify where a face appears online, monitor digital footprints, and help users submit DMCA and GDPR takedown notices.

Identity Check

Google Lens is Google's multimodal visual search and computer vision tool that identifies real-world objects, translates text in real time, solves homework equations, finds products to shop, and copies physical text to digital devices using camera frames and image uploads.

Search Engine

SearchGPT is OpenAI's AI-powered web search and real-time retrieval engine integrated into ChatGPT, delivering conversational, up-to-date web answers with in-line source citations, interactive maps, weather, financial widgets, and publisher attribution links.

Identity Check

TinFace AI is an AI-powered facial recognition search engine and reverse image matching platform that helps users find matching photos, discover look-alikes across the web, audit their digital footprint, and verify where their pictures are hosted online.

Search Engine

GigaBrain is a Reddit research and discovery tool built to surface useful community opinions, summarize discussions, and reduce repetitive browsing. Its browser extension brought Reddit insights into Google, Bing, and DuckDuckGo searches, while additional products supported deeper research, conversational follow-ups, product discovery, and Reddit trend monitoring for everyday users.