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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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Flux (Black Forest Labs)
A
Rows
A
Leonardo.ai
A
Claude Code
S
TaglineOpen weights + strong photorealism. The open-source answer.Spreadsheets with AI + live integrations baked in.Gamer + creator image gen with model fine-tuning built in.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
CategoryImageDataImageCoding
PricingAPI + open weights (Schnell is Apache 2.0)Free + $19-$89/user/moFree + $12-$60/moPart of Claude Pro/Max/Team plans
Best forDevelopers + power users who want control and privacy.Ops teams, marketers, anyone building dashboards from multiple sources.Indie game devs, illustrators, anyone training custom style models.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • General output behind Midjourney
  • Can be overwhelming
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictA-tier. S-tier if you self-host. The reason open-source image gen matters.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier for creators training custom looks. B-tier for general use.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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