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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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Groq
S
Cursor
S
Kling
A
Perplexity
S
TaglineThe fastest AI inference in the world. Crazy low latency.VS Code fork that made AI coding actually work.Kuaishou's video model. The surprise standout.AI search done right. Cited answers, not chat theater.
CategoryDev PlatformCodingVideoResearch
PricingFree tier + pay-as-you-go APIFree + $20/mo Pro + $40/mo BusinessCredit-based, free trialFree + $20/mo Pro
Best forDevelopers who need sub-100ms LLM responses.Developers. Non-developers who want to ship working code.Anyone who wants top-tier video quality for less.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • 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
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • UX is rough for English speakers
  • Queue times
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-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.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.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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