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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)
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TaglineVS Code fork that made AI coding actually work.Spreadsheets with AI + live integrations baked in.Open weights + strong photorealism. The open-source answer.
Categorycodingdataimage
PricingFree + $20/mo Pro + $40/mo BusinessFree + $19-$89/user/moAPI + open weights (Schnell is Apache 2.0)
Best forDevelopers. Non-developers who want to ship working code.Ops teams, marketers, anyone building dashboards from multiple sources.Developers + power users who want control and privacy.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →