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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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S
Flux (Black Forest Labs)
A
Devin
A
Lovable
A
TaglineThe one that actually gets text in images right.Open weights + strong photorealism. The open-source answer.Cognition Labs' autonomous coding engineer.Build a full app from a prompt. Stripe-ready.
CategoryImageImageAgentsDesign
PricingFree + $8/mo + $20/mo + $60/moAPI + open weights (Schnell is Apache 2.0)$500/moFree + $25-$100/mo
Best forAnything with text — posters, ads, album covers, slide decks.Developers + power users who want control and privacy.Engineering teams offloading tickets. Ops/platform work.Non-devs + solopreneurs shipping MVPs.
Strengths
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
Weaknesses
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Harder to use than hosted tools
  • Needs infra
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Complexity ceiling
  • Can generate brittle code
Kai's verdictS-tier for text-in-image. Use this for posters, Midjourney for art.A-tier. S-tier if you self-host. The reason open-source image gen matters.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.
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