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Leonardo.ai
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TaglineRun any open-source AI model with an API call.Gamer + creator image gen with model fine-tuning built in.Voice AI that reads + expresses emotion.Spreadsheets with AI + live integrations baked in.
CategoryDev PlatformImageVoiceData
PricingPay per second of computeFree + $12-$60/moFree tier + pay-as-you-goFree + $19-$89/user/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Indie game devs, illustrators, anyone training custom style models.Therapy apps, customer service, any voice agent where emotion matters.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • General output behind Midjourney
  • Can be overwhelming
  • Niche use case
  • Pricing ramps fast
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier for creators training custom looks. B-tier for general use.A-tier in its niche. The only one that actually gets emotion right.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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