# Logo prompt template

**Default model:** Gemini Pro for finals, Gemini Flash for exploration. Use OpenAI gpt-image-1.5 only when you need a transparent PNG in one shot without post-processing.

## Required inputs (collect from user before writing prompt)

- Brand name
- Industry / what the business does
- Personality (3 adjectives — e.g., "warm, simple, timeless")
- Style direction (flat vector / hand-drawn / geometric / monogram / wordmark / combination mark)
- Color palette (name colors + hex codes; or "monochrome black" / "monochrome white")
- Background (transparent / pure white / specific color)
- Hebrew text? → see [../reference/hebrew-rtl.md](../reference/hebrew-rtl.md) and switch to text-free + composite workflow

## Gemini variant (narrative, six-element)

```
Create an original, non-infringing logo for [BRAND NAME], a [INDUSTRY/CATEGORY].
The logo should feel [3 PERSONALITY ADJECTIVES]. [STYLE DIRECTION — e.g.,
"flat vector aesthetic, geometric monogram combining the letters X and Y" or
"clean wordmark in a custom geometric sans-serif"]. [COLOR DESCRIPTION — e.g.,
"deep navy #0B5FFF as primary with warm cream #F3EAD3 accents" or
"monochrome black #000000 on pure white"]. Composition: single centered logo
with generous padding (25% on all sides), [pure white / specified] background,
crisp edges, suitable for SVG conversion. Render at logo-design quality
appropriate for use at favicon size up to billboard scale.
```

**Run with:** `--model gemini-3-pro-image-preview --aspect 1:1 --size 4K` (final) or `--model gemini-3.1-flash-image-preview --aspect 1:1 --size 1K` (exploration).

## OpenAI gpt-image-1.5 variant (labeled segments)

```
Logo brief: original, non-infringing logo for [BRAND NAME], a [INDUSTRY].
Personality: [3 ADJECTIVES].
Mark: [STYLE DIRECTION — flat vector shapes / minimal line work / etc.].
Typography (if wordmark): [FONT STYLE — bold geometric sans-serif / classic serif / hand-drawn script]. Wordmark text (verbatim): "[EXACT BRAND NAME]".
Color palette: [COLOR DESCRIPTION with hex codes].
Composition: single centered logo, generous padding, scales cleanly from favicon to billboard.
Background: [transparent / plain white].
Constraints: flat design, minimal strokes, no gradients unless essential. No watermark, no extra text, no trademark symbols.
```

**Run with:** `--quality high --size 1024x1024 --background transparent --output-format png` for transparent PNG, or `--background opaque` on white.

## For brand-consistent variant set (multiple logos in same style)

Use Gemini Pro multi-turn or OpenAI gpt-image-1.5 with `input_fidelity=high` and reference images. See [../reference/openai-gpt-image-1-5.md](../reference/openai-gpt-image-1-5.md) §"Brand-consistent variant workflow."

## Filled example

**Brief:** Logo for "Field & Flour," a local bakery. Warm, simple, timeless. Flat design with a wheat-stalk + ampersand mark above wordmark. Deep terracotta #B5533C and warm cream #F3EAD3.

**Gemini Pro prompt:**
```
Create an original, non-infringing logo for Field & Flour, a local bakery.
The logo should feel warm, simple, and timeless. Flat vector aesthetic with
a stylized wheat-stalk and ampersand mark above the wordmark, balanced
negative space, geometric proportions. Wordmark "Field & Flour" set in a
clean geometric sans-serif beneath the mark. Color palette: deep terracotta
#B5533C as primary with warm cream #F3EAD3 background. Composition: single
centered logo with generous padding (25% on all sides), pure white
background, crisp edges suitable for SVG conversion. Logo should read
clearly at favicon size and at billboard scale.
```