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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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A
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A
Perplexity
S
TaglineGoogle Docs with an AI collaborator baked in.Open-source VS Code agent. Reads + writes + runs.Suno's main rival. Often better on instrumental nuance.AI search done right. Cited answers, not chat theater.
CategoryWritingCodingAudioResearch
PricingFree + $12/moFree (open source) + your API costsFree + $10-$30/moFree + $20/mo Pro
Best forEssays, long-form drafts, thinking on the page.VS Code users who want agentic coding without changing IDEs.Musicians comparing AI outputs. Anyone who didn't click with Suno.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
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • 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
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • 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.A-tier. Best free agentic option in VS Code. Use with Claude for best results.A-tier. Genuinely different vibe from Suno — worth trying both for a month.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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