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Compare AI tools

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)
Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Lex
A
Claude Agent SDK
S
ChatGPT Operator
B
Gamma
A
TaglineGoogle Docs with an AI collaborator baked in.Anthropic's SDK for building your own agents on Claude.OpenAI's browser agent. Clicks and types on websites for you.AI slide decks that don't look AI-generated.
CategoryWritingAgentsAgentsProductivity
PricingFree + $12/moAPI usage + SDK is freeIncluded with ChatGPT Pro $200/moFree + $10-$20/mo
Best forEssays, long-form drafts, thinking on the page.Developers building custom agents for their own company/product.Power users willing to pay $200/mo for a browser bot.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Developer-only
  • You build the UI
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for builders. The right primitives. What Kai is built on under the hood.B-tier. Still early. Manus is more flexible for less money.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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