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blog/prompts·Oct 8, 2026·6 min·by the eroq team

Flux 3 typography prompts for signs, logos, labels and packaging

Flux 3 Image prompts for signage, wordmarks, labels and packaging, with the exact words in quotes and the lettering details that keep text clean and legible.


Flux 3 Image is the latest FLUX from Black Forest Labs, and on eroq it is positioned for two things that rarely come together: natural, believable light and reliable in-image text. That pairing is what signage and packaging need: lettering only looks real on a real surface in real light. Below are twelve prompts across signs, wordmarks, labels and packs, with the exact words in quotes. Each runs at 32 credits / image, typically in about 20 seconds.

The lettering formula

A typography prompt that works answers five questions, roughly in this order:

  1. What does it say? The exact words in double quotes: "MAREL BAKERY", not "a bakery name". Quotes tell the model the words are lettering to draw, not part of the scene.
  2. Where does it sit? "Arched across the window glass", "centred on the front of the tin", "along the bottom of the circle".
  3. What does it look like? Describe the type in plain terms: condensed sans-serif capitals, high-contrast serif, looping script, rounded bold lowercase.
  4. What is it made of? Gold leaf, neon tube, engraving, foil, letterpress, a rubber stamp. The material decides how light hits each letter.
  5. What light reveals it? Raking light for relief, night for neon, side light for foil.

Two house rules on top: one block of text, or two at most (a name and a short line), and the words typed in the case you want to see.

Signage

  1. "A hand-painted bakery window on a cobbled street at eight in the morning, the words "MAREL BAKERY" in gold leaf serif capitals arched across the glass with a thin cream outline, loaves stacked on shelves inside, faint street reflections, 35mm, warm documentary photograph." 4:3. The arch and the outline are layout instructions; gold leaf on glass gives each letter its own highlight.

  2. "A pink neon sign reading "OPEN LATE" in looping script on a wet brick wall in a narrow alley at night, glass tubes with visible bends and mounting clips, the glow spilling onto puddles, light rain, 50mm, cinematic street photograph." 3:4. Neon is the friendliest lettering material there is: the glow separates every stroke.

  3. "A blue enamel railway sign reading "PLATFORM 4" in white rounded sans-serif capitals, bolted to a weathered green steel column, chipped enamel at the corners, overcast morning, shallow depth of field on the sign, travel photograph." 4:3. A flat plate facing the camera is the easiest surface to letter; the chips keep it from looking like a vector file.

  4. "A carved wooden trail sign at a forest trailhead reading "NORTH RIDGE TRAIL", routed capitals filled with yellow paint, an arrow pointing left, moss on the post, dappled afternoon light through pines, 35mm, outdoor photograph." 3:4. Saying how the letters were made, routed then filled, gives every stroke an edge and a depth.

Logos and wordmarks

Flux 3 renders a photograph of a mark, not a vector logo. Use it to find a direction for a name you own, then redraw the winner in a design tool.

  1. "The wordmark "FIELD & FERN" blind-embossed on thick cream cotton paper, a small fern leaf above the letters, elegant high-contrast serif, raking side light revealing the relief, overhead macro, stationery photograph." 1:1. Blind embossing has no ink at all: the letters exist only as light and shadow, which keeps their shapes clean.

  2. "A circular badge logo for a coffee roaster, "KILN ROASTERS" set around the top of the circle and "SMALL BATCH" along the bottom, a small flame in the centre, letterpress printed in deep red on kraft card, flat even light, top-down print sample photograph." 1:1. Two short runs of text is the most a badge should carry; the circle tells the model exactly where each one goes.

  3. "A brushed brass plaque beside a glass office door, the name "ODELL & PARTNERS" engraved in clean geometric sans-serif capitals, four polished screws, soft afternoon reflections, 85mm, architectural detail photograph." 4:3. Engraving gives each letter a shadow line, and the screws make the plaque an object rather than a graphic.

Labels

  1. "A glass jar of wildflower honey on a farmhouse table, a kraft paper label reading "WILDFLOWER HONEY" in hand-drawn black capitals, a twine bow around the lid, honey glowing in backlight from a window, shallow depth of field, rustic product photograph." 1:1. The label faces the camera and the backlight goes through the honey, not through the paper.

  2. "A slim green olive oil bottle with a cream label reading "ORO VERDE" in gold foil serif capitals above a small olive branch, on a stone counter beside a cut lemon, warm late-afternoon side light, 85mm, Mediterranean catalogue photograph." 3:4. Foil catches the side light, so the name reads as metal on paper rather than ink.

Packaging

  1. "A matte navy tea tin with the words "NIGHT GARDEN" in silver condensed capitals on the front, an embossed crescent moon above them, the lid resting beside it, loose tea leaves on a marble counter, soft top light, minimalist packaging photograph." 1:1. One name, one icon, one face of the pack. Prompts go wrong when they ask for the whole back panel.

  2. "A kraft paper flour bag tied with string, a stamped black mark reading "STONE MILL" with a small wheat sheaf, flour dust on the bag and the wooden bench, morning window light, 50mm, bakery still life photograph." 4:3. A stamp is supposed to look slightly uneven, so the style forgives small wobbles.

  3. "An aluminium soda can beaded with condensation, a pale yellow design with the words "YUZU SPARK" in rounded bold lowercase letters, sliced yuzu and ice on a bright teal surface, hard summer sunlight, crisp commercial product photograph." 3:4. A can curves letters away at its edges, so keep the word short and centred on the face.

When a word comes out wrong

  • Proof every take at full size. A batch of four costs 128 credits. Failed renders refund themselves, but a take with a typo is a delivered image.
  • Simplify before you rewrite. If one word keeps breaking, shorten it, switch it to capitals, or move it to a bigger flat surface. Tiny lettering in a wide shot is the hardest case.
  • Leave long copy to your editor. Ingredients, addresses and legal lines belong in layout software; prompt for a clean panel where they will go.
  • Your real artwork is a different job. To show your actual product with its actual label, photograph it and use Eroq One, which holds a product from up to ten reference pictures.
  • No negative prompt here. Flux 3 reads the prompt and the format, so describe the clean result you want instead of listing what to avoid.

For the hardest lettering, try GPT Image 2.5 Sunburst, which eroq positions as the sharpest at in-image text. The typography showdown puts the two side by side, how to get legible text in AI images covers the method on any model, and the Flux 3 Image guide covers the rest of the engine.

FAQ

How do I get Flux 3 to spell a word correctly?

Put the exact word in double quotes, keep it short, say where it sits and what it is made of, then render a batch of four and keep the take that spells it right. If none does, shorten the word or give it a larger surface.

Can Flux 3 Image design a logo?

It renders a picture of a mark, which is a quick way to explore directions for a name you own. Redraw the winner as a vector before using it anywhere, and leave other people's trademarks alone.

Is Flux 3 or GPT Image 2.5 better for text in images?

On eroq, GPT Image 2.5 Sunburst is positioned for the sharpest in-image text of the lineup, and Flux 3 for reliable typography with natural, photographic light. Run your prompt on both and keep the take that reads best.

How much does a Flux 3 typography batch cost?

A take costs 32 credits at any format, so a batch of four is 128 credits, about $1.28 at the entry pack.

Pick a surface, quote your words and open the image studio.

Tagsflux-3black-forest-labstypographypromptspackaging

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