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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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Cline
A
ChatGPT Operator
B
Cursor
S
Groq
S
TaglineOpen-source VS Code agent. Reads + writes + runs.OpenAI's browser agent. Clicks and types on websites for you.VS Code fork that made AI coding actually work.The fastest AI inference in the world. Crazy low latency.
CategoryCodingAgentsCodingDev Platform
PricingFree (open source) + your API costsIncluded with ChatGPT Pro $200/moFree + $20/mo Pro + $40/mo BusinessFree tier + pay-as-you-go API
Best forVS Code users who want agentic coding without changing IDEs.Power users willing to pay $200/mo for a browser bot.Developers. Non-developers who want to ship working code.Developers who need sub-100ms LLM responses.
Strengths
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictA-tier. Best free agentic option in VS Code. Use with Claude for best results.B-tier. Still early. Manus is more flexible for less money.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for speed. When latency is the product, start here.
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