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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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Dev Platform
Agents
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Video
Audio
Research
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Image
Meetings
Design
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Data
Marketing
Education
OpenRouter
S
Framer
A
Ideogram
S
Grammarly
A
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Design + publish sites with AI assists built in.The one that actually gets text in images right.Grammar check + tone + AI drafting, everywhere you type.
CategoryDev PlatformDesignImageWriting
PricingPay per token — model-dependentFree + $5-$30/moFree + $8/mo + $20/mo + $60/moFree + $12-$15/mo Premium + team plans
Best forDevelopers experimenting across models. Apps that want fallback logic.Designers shipping marketing sites without engineers.Anything with text — posters, ads, album covers, slide decks.Non-native English writers, business email, anyone who types a lot.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • 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
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Less flexible than raw code
  • Pricing per-site adds up
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier for designer-led sites. S-tier if animations matter.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.
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