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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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OpenRouter
S
Recraft
S
Elicit
S
Replicate
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Vector + raster AI for designers. Actually controls the output.AI research assistant for academic literature.Run any open-source AI model with an API call.
CategoryDev PlatformImageResearchDev Platform
PricingPay per token — model-dependentFree + $12-$48/moFree + $12-$42/moPay per second of compute
Best forDevelopers experimenting across models. Apps that want fallback logic.Designers, brand teams, anyone needing vector output or tight style control.Grad students, researchers, anyone doing literature reviews.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Less hyped than Midjourney
  • Learning curve for non-designers
  • Academic-only
  • Can hallucinate citations — verify everything
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.S-tier for designers. The only one that takes vectors seriously.S-tier for academic research. Nothing else comes close for systematic reviews.S-tier for open-source model APIs. The default in this space.
LinkOpen →Open →Open →Open →