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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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Claude Agent SDK
S
Hex
A
Kling
A
ChatGPT Operator
B
TaglineAnthropic's SDK for building your own agents on Claude.Modern data notebook with Magic AI assistant.Kuaishou's video model. The surprise standout.OpenAI's browser agent. Clicks and types on websites for you.
CategoryAgentsDataVideoAgents
PricingAPI usage + SDK is freeFree + $28+/user/moCredit-based, free trialIncluded with ChatGPT Pro $200/mo
Best forDevelopers building custom agents for their own company/product.Data teams at startups + enterprises.Anyone who wants top-tier video quality for less.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Developer-only
  • You build the UI
  • Overkill for casual users
  • Enterprise pricing
  • UX is rough for English speakers
  • Queue times
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.A-tier for data teams. S-tier if you already live in SQL + Python.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.B-tier. Still early. Manus is more flexible for less money.
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