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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
Aider
A
Runway
S
TaglineGoogle's research notebook. Turns your docs into a podcast.Terminal-based AI pair programmer. Git-aware, model-flexible.The pro's AI video tool. Gen-4 is the current bar.
CategoryResearchCodingVideo
PricingFreeFree (open source) + whatever API you useFree + $15-$95/mo
Best forStudents, researchers, anyone with a stack of PDFs or a topic to learn.Developers who want open-source tooling with full control.Marketing video, pitch decks, b-roll, creative shorts.
Strengths
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
Weaknesses
  • Google-only
  • Can be slow on large corpora
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Expensive at scale
  • Still needs post-editing
Kai's verdictS-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.S-tier. Market leader with reason. Start here for serious video.
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