Compare AI tools

	Replit Agent A	Gamma A	NotebookLM S	Perplexity S
Tagline	Replit's AI that builds + deploys full apps on their platform.	AI slide decks that don't look AI-generated.	Google's research notebook. Turns your docs into a podcast.	AI search done right. Cited answers, not chat theater.
Category	Coding	Productivity	Research	Research
Pricing	$10-$25/mo Core/Teams	Free + $10-$20/mo	Free	Free + $20/mo Pro
Best for	Teachers, students, prototypers, hackathon builders.	Pitch decks, proposals, internal presentations — fast.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Replacing Google for any question where you want a cited answer in seconds.
Strengths	Full-stack + DB + auth + deploy in one environment Great for teaching/learning Runs everything in-browser	Strong templates Decks, docs, webpages Doesn't look generic	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context
Weaknesses	Locked into Replit hosting Less code quality than dedicated IDEs	Locked into Gamma's format Export quality varies	Google-only Can be slow on large corpora	Not a general chatbot Answers can be shallow on complex topics
Kai's verdict	A-tier. Best for teaching a kid to code in 2026.	A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
Link	Open →	Open →	Open →	Open →