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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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Chatbots
Research
Coding
Image
Video
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Meetings
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Productivity
Audio
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Agents
Dev Platform
Data
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Perplexity
S
Sora
A
Lovable
A
Lex
A
TaglineAI search done right. Cited answers, not chat theater.OpenAI's video model. Long clips, cinematic quality.Build a full app from a prompt. Stripe-ready.Google Docs with an AI collaborator baked in.
CategoryResearchVideoDesignWriting
PricingFree + $20/mo ProIncluded with ChatGPT Plus/ProFree + $25-$100/moFree + $12/mo
Best forReplacing Google for any question where you want a cited answer in seconds.ChatGPT subscribers experimenting with cinematic shots.Non-devs + solopreneurs shipping MVPs.Essays, long-form drafts, thinking on the page.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Complexity ceiling
  • Can generate brittle code
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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