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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
Rows
A
GitHub Copilot
B
Flux (Black Forest Labs)
A
TaglineGamer + creator image gen with model fine-tuning built in.Spreadsheets with AI + live integrations baked in.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Open weights + strong photorealism. The open-source answer.
Categoryimagedatacodingimage
PricingFree + $12-$60/moFree + $19-$89/user/moFree (limited) + $10/mo Pro + $19/mo BusinessAPI + open weights (Schnell is Apache 2.0)
Best forIndie game devs, illustrators, anyone training custom style models.Ops teams, marketers, anyone building dashboards from multiple sources.Teams with GitHub already. Devs who don't want to change IDEs.Developers + power users who want control and privacy.
Strengths
  • 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
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • General output behind Midjourney
  • Can be overwhelming
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictA-tier for creators training custom looks. B-tier for general use.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →Open →