ITG NowOther AI tools for research
Each one opens its own page with the price and a link.
NotebookLM
Google
Upload your notes and files, then ask questions or get a podcast summary
Free plan + paid from $4.99/month
Manus
Manus AI
AI helper that does multi-step jobs for you, like research and websites
Free plan + paid from $20/month
Free GitHub alternatives
Free, open-source tools from GitHub in the same area, each with a plain-English guide.
Headroom: Reduce AI Token Costs for Free
It shrinks logs, files and data on your computer before your AI reads them, so answers stay the same.
REA: Reverse Engineer Anything With Your AI Agent
REA (Reverse Engineer Anything) lets an AI agent look inside an app and explain how a feature works, with proof.
DBX: Free Database Client for 100+ Databases, With AI
Its AI helper turns plain English into database queries for you.
Moli: A Free, Light Headless Browser for AI Agents
It lets AI helpers read, search and use websites fast, while using far less memory than Chrome.
FAQ
Is Perplexity free?
Perplexity has a free plan. Paid plans start at $17/month, billed yearly, as listed on its pricing page (checked 19 Oct 2026). Prices can change, so check before you pay.
What is Perplexity for?
Ask a question and get an answer with links to its sources. We list it under Research and Chat. Good for everyone and students.
Who makes Perplexity?
Perplexity is made by Perplexity.