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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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Replicate
S
Ideogram
S
Grammarly
A
Gemini
A
TaglineRun any open-source AI model with an API call.The one that actually gets text in images right.Grammar check + tone + AI drafting, everywhere you type.Google's answer. Best integrated with Workspace + free for a lot.
Categorydev platformimagewritingchat
PricingPay per second of computeFree + $8/mo + $20/mo + $60/moFree + $12-$15/mo Premium + team plansFree + $20/mo Advanced (bundled with 2TB Drive)
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Anything with text — posters, ads, album covers, slide decks.Non-native English writers, business email, anyone who types a lot.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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