FreeListed
LMArena
LMArena
Chat with frontier AI models side by side and vote on the better answer — free, no account needed, from the project behind the influential LMSYS leaderboards.
Research & Reference
Free Perplexity alternatives
Other checked tools in the same category as Perplexity — each with a genuine free tier, verified against the provider's own pages, and described with its honest limits.
Best for: weighing Perplexity against free rivals before committing time or money to one.
FreeListed
Kaggle
A free platform for data science and machine learning — public datasets, browser notebooks with free GPUs/TPUs, competitions, a model hub, and hands-on courses, at kaggle.com.
FreemiumListed
Google NotebookLM
Google's AI research and note-taking tool that answers from the sources you upload — documents, PDFs, slides, links — and cites them. Free at notebooklm.google with a Google account, it can even turn your sources into a spoken audio overview.
Back to the Perplexity listing or every checked tool in Research & Reference.