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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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Dev Platform
Audio
Research
Agents
Coding
Chatbots
Image
Video
Voice
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Perplexity
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Raycast AI
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v0
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HeyGen
S
TaglineAI search done right. Cited answers, not chat theater.Mac launcher + AI. Command-bar genius.Vercel's AI-powered UI generator. Prompt to shadcn component.AI avatar videos. Record once, speak any language.
CategoryResearchProductivityDesignVideo
PricingFree + $20/mo ProFree (app) + $10/mo AIFree + $20/moFree + $24-$65/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Power users on Mac who type a lot.Frontend devs, PMs prototyping UIs, anyone on Next.js.Course creators, multilingual marketers, anyone scaling video content.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Invoke AI from anywhere on Mac with a hotkey
  • Choose your model (Claude, GPT, etc.)
  • AI Commands for repeatable workflows
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Mac-only
  • Monthly AI sub on top of free app
  • Best for shadcn stack
  • Iterating can be fiddly
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier if you're on Mac. The fastest way to get AI answers without context-switching.S-tier. If you're on Vercel/shadcn, this is cheating.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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