KaiAI tutor for anyone

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)
chat
research
coding
image
video
voice
meeting
design
productivity
audio
writing
agents
dev platform
data
marketing
education
Gemini
A
Claude
S
GitHub Copilot
B
Perplexity
S
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.Anthropic's flagship — best reasoning + longest useful context.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI search done right. Cited answers, not chat theater.
Categorychatchatcodingresearch
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Free + $20/mo Pro + team/enterpriseFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/mo Pro
Best forAnyone already on Google, research tasks, summarizing long documents.Long writing, code, careful thinking, documents over 50 pages.Teams with GitHub already. Devs who don't want to change IDEs.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Image generation is weak
  • No native web search on all tiers
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
LinkOpen →Open →Open →Open →