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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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Kling
A
Gamma
A
ChatGPT Operator
B
Aider
A
TaglineKuaishou's video model. The surprise standout.AI slide decks that don't look AI-generated.OpenAI's browser agent. Clicks and types on websites for you.Terminal-based AI pair programmer. Git-aware, model-flexible.
CategoryVideoProductivityAgentsCoding
PricingCredit-based, free trialFree + $10-$20/moIncluded with ChatGPT Pro $200/moFree (open source) + whatever API you use
Best forAnyone who wants top-tier video quality for less.Pitch decks, proposals, internal presentations — fast.Power users willing to pay $200/mo for a browser bot.Developers who want open-source tooling with full control.
Strengths
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
Weaknesses
  • UX is rough for English speakers
  • Queue times
  • Locked into Gamma's format
  • Export quality varies
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
Kai's verdictA-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.B-tier. Still early. Manus is more flexible for less money.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.
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