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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
TaglineOpen-source VS Code agent. Reads + writes + runs.Spreadsheets with AI + live integrations baked in.Codeium's agentic IDE. Cascade agent + strong free tier.Open weights + strong photorealism. The open-source answer.
CategoryCodingDataCodingImage
PricingFree (open source) + your API costsFree + $19-$89/user/moFree + $15/mo ProAPI + open weights (Schnell is Apache 2.0)
Best forVS Code users who want agentic coding without changing IDEs.Ops teams, marketers, anyone building dashboards from multiple sources.Developers who want Cursor-like power for less money.Developers + power users who want control and privacy.
Strengths
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Smaller community
  • Model selection more limited
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictA-tier. Best free agentic option in VS Code. Use with Claude for best results.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →Open →