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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Lex
A
Perplexity
S
Granola
S
NotebookLM
S
TaglineGoogle Docs with an AI collaborator baked in.AI search done right. Cited answers, not chat theater.Meeting notes that don't suck. Runs locally, no bot joins.Google's research notebook. Turns your docs into a podcast.
CategoryWritingResearchMeetingsResearch
PricingFree + $12/moFree + $20/mo ProFree + $18/moFree
Best forEssays, long-form drafts, thinking on the page.Replacing Google for any question where you want a cited answer in seconds.Founders, execs, consultants who live in calls.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • No bot in the call — runs on your Mac
  • Strong templates
  • Fast summaries
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Mac-only
  • Single-user by design
  • Google-only
  • Can be slow on large corpora
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier. Category-defining UX. If you take notes in meetings, switch this week.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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