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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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Windsurf
A
Devin
A
Ollama
S
Perplexity
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Cognition Labs' autonomous coding engineer.Run LLMs locally. One-line install, GUI optional.AI search done right. Cited answers, not chat theater.
CategoryCodingAgentsDev PlatformResearch
PricingFree + $15/mo Pro$500/moFree + open sourceFree + $20/mo Pro
Best forDevelopers who want Cursor-like power for less money.Engineering teams offloading tickets. Ops/platform work.Devs wanting offline/local LLMs for privacy or experimentation.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Run Llama, Mistral, Qwen, etc. on your laptop
  • Simple CLI + API
  • Hardware-aware (picks the right quant)
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Smaller community
  • Model selection more limited
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Needs beefy laptop for larger models
  • Speed way behind cloud APIs
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for local inference. If you care about privacy or want to tinker, install this today.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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