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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
A
Grammarly
A
Ideogram
S
Claude Code
S
TaglineTerminal-based AI pair programmer. Git-aware, model-flexible.Grammar check + tone + AI drafting, everywhere you type.The one that actually gets text in images right.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
CategoryCodingWritingImageCoding
PricingFree (open source) + whatever API you useFree + $12-$15/mo Premium + team plansFree + $8/mo + $20/mo + $60/moPart of Claude Pro/Max/Team plans
Best forDevelopers who want open-source tooling with full control.Non-native English writers, business email, anyone who types a lot.Anything with text — posters, ads, album covers, slide decks.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictA-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.S-tier for text-in-image. Use this for posters, Midjourney for art.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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