Compare AI tools

	Leonardo.ai A	NotebookLM S	Claude Code S	Lex A
Tagline	Gamer + creator image gen with model fine-tuning built in.	Google's research notebook. Turns your docs into a podcast.	Anthropic's CLI agent. Opus-powered, operates on your repo directly.	Google Docs with an AI collaborator baked in.
Category	Image	Research	Coding	Writing
Pricing	Free + $12-$60/mo	Free	Part of Claude Pro/Max/Team plans	Free + $12/mo
Best for	Indie game devs, illustrators, anyone training custom style models.	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Developers who want an agent, not autocomplete. Large refactors, tests, docs.	Essays, long-form drafts, thinking on the page.
Strengths	Train your own models on your style/character Great for game art + concept art Generous free tier	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks	Clean writing UX — distraction-free +++ prompt triggers AI help Collaboration + AI feedback together
Weaknesses	General output behind Midjourney Can be overwhelming	Google-only Can be slow on large corpora	Terminal-based — learning curve Can't be used without Claude subscription	Less feature-rich than Google Docs AI ceiling below dedicated tools
Kai's verdict	A-tier for creators training custom looks. B-tier for general use.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.	A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
Link	Open →	Open →	Open →	Open →