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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
Perplexity
S
Groq
S
Cursor
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.AI search done right. Cited answers, not chat theater.The fastest AI inference in the world. Crazy low latency.VS Code fork that made AI coding actually work.
CategoryCodingResearchDev PlatformCoding
PricingFree + $15/mo ProFree + $20/mo ProFree tier + pay-as-you-go APIFree + $20/mo Pro + $40/mo Business
Best forDevelopers who want Cursor-like power for less money.Replacing Google for any question where you want a cited answer in seconds.Developers who need sub-100ms LLM responses.Developers. Non-developers who want to ship working code.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • 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
Weaknesses
  • Smaller community
  • Model selection more limited
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.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.
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