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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
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Perplexity
S
Lex
A
Midjourney
S
Sora
A
TaglineAI search done right. Cited answers, not chat theater.Google Docs with an AI collaborator baked in.The aesthetic gold standard for AI image generation.OpenAI's video model. Long clips, cinematic quality.
CategoryResearchWritingImageVideo
PricingFree + $20/mo ProFree + $12/mo$10-$120/moIncluded with ChatGPT Plus/Pro
Best forReplacing Google for any question where you want a cited answer in seconds.Essays, long-form drafts, thinking on the page.Anyone who wants beautiful images without thinking about prompts.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Best-in-class art direction
  • v7 is stunning
  • Great style consistency
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • No free tier
  • Discord-first UX (web now available)
  • Less controllable than ComfyUI
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
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. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for aesthetics. If you care how it looks more than how it's made, this wins.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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