Best Lens.org Alternatives
Free and open patent and scholarly search
#1
Semantic Scholar
AI-powered academic search engine
#2
Scinapse
AI academic search engine for scientific literature
#3
Explainpaper
AI that explains academic papers in plain language
#4
NotebookLM Plus
Google's premium research assistant with extended usage and team features
#5
Perplexity Labs
Perplexity's experimental AI features including deep research and internal models
#6
Perplexity
AI research assistant and search engine
#7
SciSpace
AI-powered research paper analysis and explanation
#8
Connected Papers
Visual tool for exploring academic paper networks