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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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NotebookLM
S
TaglineSpreadsheets with AI + live integrations baked in.Run any open-source AI model with an API call.Open-source VS Code agent. Reads + writes + runs.Google's research notebook. Turns your docs into a podcast.
CategoryDataDev PlatformCodingResearch
PricingFree + $19-$89/user/moPay per second of computeFree (open source) + your API costsFree
Best forOps teams, marketers, anyone building dashboards from multiple sources.Developers using open-source models (Flux, SDXL, Whisper, etc).VS Code users who want agentic coding without changing IDEs.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Google-only
  • Can be slow on large corpora
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for open-source model APIs. The default in this space.A-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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