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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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ChatGPT Operator
B
Groq
S
Cursor
S
Claude Agent SDK
S
TaglineOpenAI's browser agent. Clicks and types on websites for you.The fastest AI inference in the world. Crazy low latency.VS Code fork that made AI coding actually work.Anthropic's SDK for building your own agents on Claude.
CategoryAgentsDev PlatformCodingAgents
PricingIncluded with ChatGPT Pro $200/moFree tier + pay-as-you-go APIFree + $20/mo Pro + $40/mo BusinessAPI usage + SDK is free
Best forPower users willing to pay $200/mo for a browser bot.Developers who need sub-100ms LLM responses.Developers. Non-developers who want to ship working code.Developers building custom agents for their own company/product.
Strengths
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Developer-only
  • You build the UI
Kai's verdictB-tier. Still early. Manus is more flexible for less money.S-tier for speed. When latency is the product, start here.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for builders. The right primitives. What Kai is built on under the hood.
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