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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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Replicate
S
NotebookLM
S
Figma AI
A
ChatGPT Operator
B
TaglineRun any open-source AI model with an API call.Google's research notebook. Turns your docs into a podcast.AI features baked into the design tool you already use.OpenAI's browser agent. Clicks and types on websites for you.
CategoryDev PlatformResearchDesignAgents
PricingPay per second of computeFreeIncluded with Figma plansIncluded with ChatGPT Pro $200/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Students, researchers, anyone with a stack of PDFs or a topic to learn.Designers already on Figma.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Google-only
  • Can be slow on large corpora
  • Features vary by plan + region
  • Still rolling out
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.A-tier. No reason not to use it if you're on Figma. Not worth switching for.B-tier. Still early. Manus is more flexible for less money.
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