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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
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Image
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Agents
Dev Platform
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Lex
A
Suno
S
Manus
S
Perplexity
S
TaglineGoogle Docs with an AI collaborator baked in.Prompt to full song with vocals, instruments, the works.Autonomous AI agent that actually finishes tasks.AI search done right. Cited answers, not chat theater.
CategoryWritingAudioAgentsResearch
PricingFree + $12/moFree + $10/mo + $30/moFree tier + $39-$199/moFree + $20/mo Pro
Best forEssays, long-form drafts, thinking on the page.Jingles, intros, demos, sketches, personal use.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Copyright gray zone
  • Audio quality behind studio
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier in its category. The first AI music tool I'd actually listen to.S-tier in the agent category. The first one I'd give to a non-technical friend.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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