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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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Aider
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Gamma
A
TaglineVS Code fork that made AI coding actually work.Terminal-based AI pair programmer. Git-aware, model-flexible.AI slide decks that don't look AI-generated.
Categorycodingcodingproductivity
PricingFree + $20/mo Pro + $40/mo BusinessFree (open source) + whatever API you useFree + $10-$20/mo
Best forDevelopers. Non-developers who want to ship working code.Developers who want open-source tooling with full control.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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