Compare AI tools

	Claude Code S	Hume AI A	Gemini A	NotebookLM S
Tagline	Anthropic's CLI agent. Opus-powered, operates on your repo directly.	Voice AI that reads + expresses emotion.	Google's answer. Best integrated with Workspace + free for a lot.	Google's research notebook. Turns your docs into a podcast.
Category	Coding	Voice	Chatbots	Research
Pricing	Part of Claude Pro/Max/Team plans	Free tier + pay-as-you-go	Free + $20/mo Advanced (bundled with 2TB Drive)	Free
Best for	Developers who want an agent, not autocomplete. Large refactors, tests, docs.	Therapy apps, customer service, any voice agent where emotion matters.	Anyone already on Google, research tasks, summarizing long documents.	Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks	Detects + mirrors emotional tone EVI (Empathic Voice Interface) feels different Expressive voice output	Native Google Workspace integration Very long context (1M+) Deep Research feature Free tier is generous	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying
Weaknesses	Terminal-based — learning curve Can't be used without Claude subscription	Niche use case Pricing ramps fast	Writing quality trails Claude Over-refusals on edge content UI is cluttered	Google-only Can be slow on large corpora
Kai's verdict	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.	A-tier in its niche. The only one that actually gets emotion right.	A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
Link	Open →	Open →	Open →	Open →