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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
DALL-E 3
B
v0
S
GitHub Copilot
B
TaglineOpen weights + strong photorealism. The open-source answer.OpenAI's image model. Built into ChatGPT Plus.Vercel's AI-powered UI generator. Prompt to shadcn component.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.
CategoryImageImageDesignCoding
PricingAPI + open weights (Schnell is Apache 2.0)Included with ChatGPT Plus $20/moFree + $20/moFree (limited) + $10/mo Pro + $19/mo Business
Best forDevelopers + power users who want control and privacy.ChatGPT Plus users who want images without paying extra.Frontend devs, PMs prototyping UIs, anyone on Next.js.Teams with GitHub already. Devs who don't want to change IDEs.
Strengths
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Best for shadcn stack
  • Iterating can be fiddly
  • Less agentic than Cursor/Claude Code
  • Model quality varies
Kai's verdictA-tier. S-tier if you self-host. The reason open-source image gen matters.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier. If you're on Vercel/shadcn, this is cheating.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.
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