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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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Grammarly
A
Groq
S
Ideogram
S
Cursor
S
TaglineGrammar check + tone + AI drafting, everywhere you type.The fastest AI inference in the world. Crazy low latency.The one that actually gets text in images right.VS Code fork that made AI coding actually work.
CategoryWritingDev PlatformImageCoding
PricingFree + $12-$15/mo Premium + team plansFree tier + pay-as-you-go APIFree + $8/mo + $20/mo + $60/moFree + $20/mo Pro + $40/mo Business
Best forNon-native English writers, business email, anyone who types a lot.Developers who need sub-100ms LLM responses.Anything with text — posters, ads, album covers, slide decks.Developers. Non-developers who want to ship working code.
Strengths
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
Weaknesses
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictA-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.S-tier for speed. When latency is the product, start here.S-tier for text-in-image. Use this for posters, Midjourney for art.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
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