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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.
Pick tools (4 selected)
Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Lex
A
Perplexity
S
Claude Agent SDK
S
Ideogram
S
TaglineGoogle Docs with an AI collaborator baked in.AI search done right. Cited answers, not chat theater.Anthropic's SDK for building your own agents on Claude.The one that actually gets text in images right.
CategoryWritingResearchAgentsImage
PricingFree + $12/moFree + $20/mo ProAPI usage + SDK is freeFree + $8/mo + $20/mo + $60/mo
Best forEssays, long-form drafts, thinking on the page.Replacing Google for any question where you want a cited answer in seconds.Developers building custom agents for their own company/product.Anything with text — posters, ads, album covers, slide decks.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Developer-only
  • You build the UI
  • Aesthetic ceiling below Midjourney
  • Less style variety
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for text-in-image. Use this for posters, Midjourney for art.
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