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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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Leonardo.ai
A
Perplexity
S
OpenRouter
S
Stable Audio
A
TaglineGamer + creator image gen with model fine-tuning built in.AI search done right. Cited answers, not chat theater.One API, every model. Pay-as-you-go, no subscriptions.Stability AI's open audio model. Loops + SFX + background.
CategoryImageResearchDev PlatformAudio
PricingFree + $12-$60/moFree + $20/mo ProPay per token — model-dependentFree + $12/mo Pro + enterprise
Best forIndie game devs, illustrators, anyone training custom style models.Replacing Google for any question where you want a cited answer in seconds.Developers experimenting across models. Apps that want fallback logic.Game developers, podcasters needing SFX, video creators needing background music.
Strengths
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
Weaknesses
  • General output behind Midjourney
  • Can be overwhelming
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Slight markup over direct API
  • Some provider features not exposed
  • Not for full songs with vocals
  • Shorter generation limits
Kai's verdictA-tier for creators training custom looks. B-tier for general use.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for model-shopping. I use this for every prototype before committing.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.
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