Semantic Scholar

The key strength of Semantic Scholar is that it uses AI to perform semantic (meaning-based) search across a large corpus of papers—letting you find relevant literature beyond simple keyword matching—and pairs that with features like summaries, citation graphs, and author profiles to accelerate understanding of research relevance and impact.

Elicit
Elicit’s main strength is its ability to rapidly find, summarize, and extract data from millions of research papers using natural-language search, making literature reviews faster and more transparent by showing the supporting evidence for each extracted finding. It’s especially useful for efficiently screening studies and organizing evidence in a structured, auditable way.

Research Rabbit
ResearchRabbit excels at visually mapping literature—showing how articles and authors connect via citation networks—while offering personalized, AI-driven recommendations based on your collection.

Scite
The key strength of Scite lies in its “smart citations” feature, which not only shows that an article was cited but categorizes how it was cited (“supporting,” “contrasting,” or “mentioning”), offering deeper insight into the scholarly conversation. It’s especially useful for quickly identifying which research is widely endorsed or debated in a field.

ChatPDF

The key strengths of ChatPDF are that you can upload a PDF and ask it natural-language questions (making it much faster to extract specific information from long or complex documents) and that it provides source-anchored answers (so you can click through to the exact part of the document being referenced). 

Humata

The key strength of Humata is its ability to ingest multiple documents (PDFs, text files, etc.) at once and provide context-anchored, searchable answers across them, making it ideal for team-based research or knowledge review. It also supports collaboration, integration into workflows, and enterprise-grade security for organisational use.

Also check out:

Khan Academy's new AI tutoring platform, Khanmigo.

AI-powered video summaries, from Summarize.Tech.