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Prompt Architect
Free · 8 models · No credit card

Engineer AI prompts
like a pro.

Stop guessing. Pick a style, pick a material, pick a model — get a perfect prompt for Midjourney, DALL·E 3, Flux and 5 more. Share it as a beautiful card with a QR code so anyone can remix it.

Sign in with Google to startSee how it works

Free forever. 5-second Google sign-in. Your API keys stay in your browser.

Works natively with

  • Midjourney
  • DALL·E 3
  • Flux
  • Stable Diffusion
  • Ideogram
  • Qwen
  • GPT Image
  • Nano Banana

How it works

Three picks. One perfect prompt.

  1. 01

    Pick a style × material

    14 styles (cyberpunk, bento, aurora, holographic…) × 11 materials (glass, clay, chrome, neon…). The compatibility engine disables what won't work.

  2. 02

    Pick a model

    Midjourney, DALL·E 3, Flux, Stable Diffusion, Ideogram, GPT Image, Qwen or Nano Banana. We auto-translate to native syntax — parameters and all.

  3. 03

    Generate, share, remix

    Copy the prompt, run it in your model of choice, then export a beautiful share card with a QR that lets anyone scan-and-remix.

What you get

Everything an AI artist actually needs.

  • Visual style × material studio

    14 styles × 11 materials with a built-in compatibility engine. Pick what works, see invalid combinations greyed out — no guesswork.

  • Side-by-side model comparison

    Same prompt, four models, rendered in parallel. Finally see the difference between Midjourney, DALL·E, Flux and Stable Diffusion.

  • Share cards with QR remix

    4 themes × 3 ratios. Export as PNG. The QR code lets anyone scan and remix your exact prompt setup in one tap.

  • Model-specific syntax, automatic

    Forget --s, --c and --v. We translate your visual choices into the right syntax for every supported model.

  • Custom styles, save & share

    Build your own style packs, export them as JSON, share with your team. Bring brand consistency to AI art.

  • Bring your own keys

    OpenAI, Replicate, Stability AI, Ideogram, BFL, Google. Keys live only in your browser — never on our servers.

Compare view

Same prompt. Four models. Rendered side-by-side.

Finally understand what makes each model tick. See exactly how Midjourney's style stacking differs from Flux's photorealism or DALL·E 3's clean illustration.

  • Hard-locked at 4 models for fair, focused comparison
  • Native syntax shown for every model
  • Stylize, chaos and aspect ratio carry across all four
Midjourney
DALL·E 3
Flux
Stable Diffusion

FAQ

Questions, answered.

Is it really free?

Yes. Free forever. Sign in with Google in five seconds to save your prompts and access cloud sync — no credit card, no trial.

Why do I need to sign in?

So your prompts, custom styles and history travel with you across devices. We use Google sign-in (or email) and store nothing more than what you create.

Does it work with Midjourney?

Yes — plus DALL·E 3, Flux, Stable Diffusion, Ideogram, GPT Image, Qwen and Nano Banana. Each model gets its own native prompt syntax.

I'm already using PromptHero or PromptBase. What's different?

Those are prompt marketplaces. Prompt Architect is a prompt builder — you craft your own, optimised for each model, and share them as scannable cards.

Can ChatGPT just write prompts for me?

ChatGPT doesn't know Midjourney's --s and --c parameters, doesn't show you material × style combos visually, and can't produce a remixable share card.

Where do my API keys live?

Only in your browser. They never touch our servers. You can revoke them in your provider dashboard at any time.

Ready to engineer
your next prompt?

Free forever. 5-second Google sign-in. Your data, your keys, your prompts.

Sign in with Google to start

Prompt of the week

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