KaiAI tutor for anyone

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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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chat
research
coding
image
video
voice
meeting
design
productivity
audio
writing
agents
dev platform
data
marketing
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GitHub Copilot
B
ChatGPT
S
Lex
A
Runway
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.The default. Strongest ecosystem + best multimodal breadth.Google Docs with an AI collaborator baked in.The pro's AI video tool. Gen-4 is the current bar.
Categorycodingchatwritingvideo
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/mo Plus + $200/mo ProFree + $12/moFree + $15-$95/mo
Best forTeams with GitHub already. Devs who don't want to change IDEs.General use, voice chat, image generation, first-time AI users.Essays, long-form drafts, thinking on the page.Marketing video, pitch decks, b-roll, creative shorts.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Great voice mode
  • Huge plugin/custom GPT ecosystem
  • Strong image generation (DALL-E built in)
  • Code Interpreter
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Reasoning quality varies by mode
  • Can be verbose
  • Confabulates on niche facts
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Expensive at scale
  • Still needs post-editing
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier all-rounder. If you want one tool that does everything okay-to-great, this is it.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier. Market leader with reason. Start here for serious video.
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