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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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Perplexity
S
HeyGen
S
Ideogram
S
Lex
A
TaglineAI search done right. Cited answers, not chat theater.AI avatar videos. Record once, speak any language.The one that actually gets text in images right.Google Docs with an AI collaborator baked in.
Categoryresearchvideoimagewriting
PricingFree + $20/mo ProFree + $24-$65/moFree + $8/mo + $20/mo + $60/moFree + $12/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Course creators, multilingual marketers, anyone scaling video content.Anything with text — posters, ads, album covers, slide decks.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
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • 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
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • 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.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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