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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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OpenRouter
S
ChatGPT Operator
B
Rows
A
NotebookLM
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.OpenAI's browser agent. Clicks and types on websites for you.Spreadsheets with AI + live integrations baked in.Google's research notebook. Turns your docs into a podcast.
CategoryDev PlatformAgentsDataResearch
PricingPay per token — model-dependentIncluded with ChatGPT Pro $200/moFree + $19-$89/user/moFree
Best forDevelopers experimenting across models. Apps that want fallback logic.Power users willing to pay $200/mo for a browser bot.Ops teams, marketers, anyone building dashboards from multiple sources.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Google-only
  • Can be slow on large corpora
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.B-tier. Still early. Manus is more flexible for less money.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
LinkOpen →Open →Open →Open →