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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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Windsurf
A
Leonardo.ai
A
Rows
A
Hume AI
A
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Gamer + creator image gen with model fine-tuning built in.Spreadsheets with AI + live integrations baked in.Voice AI that reads + expresses emotion.
CategoryCodingImageDataVoice
PricingFree + $15/mo ProFree + $12-$60/moFree + $19-$89/user/moFree tier + pay-as-you-go
Best forDevelopers who want Cursor-like power for less money.Indie game devs, illustrators, anyone training custom style models.Ops teams, marketers, anyone building dashboards from multiple sources.Therapy apps, customer service, any voice agent where emotion matters.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
Weaknesses
  • Smaller community
  • Model selection more limited
  • General output behind Midjourney
  • Can be overwhelming
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Niche use case
  • Pricing ramps fast
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-tier for creators training custom looks. B-tier for general use.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier in its niche. The only one that actually gets emotion right.
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