ImageAd creativesIntermediateGenerates an image

Google Display landscape imagery (1.91:1)

Landscape imagery for responsive display ads, with a subject that survives centre-crops and a quiet band for a text overlay.

For: Performance marketers, Creative strategists, E-commerce marketers · Works with: OpenAI GPT Image, Google Gemini image generation (Nano Banana), FLUX (Black Forest Labs), Any image generator

Your prompt

Create a 1.91:1 landscape image for a responsive display ad promoting a 30-day free trial of a project-management app to small agency owners. Subject: a laptop showing an abstract kanban board, slightly angled, with a coffee cup beside it, centred horizontally and large enough to remain recognisable if the image is cropped to a 1:1 centre square. Background: a softly blurred bright office with out-of-focus plants, uncluttered, with low detail near the left and right edges so cropping or overlays do not collide with important content. Look: clean modern commercial photography; clear and legible at small sizes, high contrast between subject and background. Colour: white, light grey and one saturated blue accent. Constraints: no text, logos, watermarks or borders; no important detail in the outer 10% of the frame.

Customize

The fields start with example values so you can see how the prompt works. Everything stays in your browser.

What the ad promotes.

Who the ad is for.

The central visual.

The environment.

The overall look.

Colours to use.

Example of what to expect

Illustrative only. It describes the kind of result this prompt aims for; real output varies by tool, model and run.

A wide image with a centred laptop and coffee cup, a blurred office behind, calm left and right edges, and a single blue accent.

Expected format: One 1.91:1 image; check that a 1:1 centre crop still works.

How to use it

  1. Generate at the largest landscape size available.
  2. Make a 1:1 centre crop to confirm the subject survives cropping.
  3. Upload as the landscape image asset in your responsive display ad and add text via ad fields, not in the image.

Limitations

  • Responsive display placements crop and overlay assets automatically, so always preview the generated combinations.
  • Some tools cannot output exactly 1.91:1; generate the closest ratio and crop.

Platform notes

OpenAI GPT Image

Official docs read · checked 2026-10-11

Aspect ratio is set with the size parameter, not in prose. Use medium or high quality when the image contains text or fine detail. 1.91:1 is close to 1536x1024 or 2048x1072; pick a valid size and crop.

General notes on OpenAI GPT Image
  • OpenAI's guide covers gpt-image-2 (recommended), gpt-image-1.5, gpt-image-1 and gpt-image-1-mini.
  • Aspect ratio is set through the size parameter, not in prose. Quality is low, medium or high; medium or high is advised for small or dense text.
  • Put literal text in quotation marks, and when editing say what must stay unchanged.

Google Gemini image generation (Nano Banana)

Official docs read · checked 2026-10-11
General notes on Google Gemini image generation (Nano Banana)
  • Google's docs list several Nano Banana models (2.1, 2 Lite, 2, Pro) and recommend 2.1 for new projects as of the verification date.
  • Supported aspect ratios include 1:1, 4:5, 9:16, 16:9 and 21:9; sizes 1K, 2K and 4K. Up to 14 reference images per request.
  • All generated images carry a SynthID watermark.

FLUX (Black Forest Labs)

Official docs read · checked 2026-10-11

FLUX.2 does not use negative prompts, so every constraint here is written as something to do rather than something to avoid.

General notes on FLUX (Black Forest Labs)
  • BFL's official guidance for FLUX.2: no negative prompts (describe what you want), write sentences rather than keyword lists, specify lighting, quote text to render, and pair colour names with hex codes.

Any image generator

Official docs read · checked 2026-10-11
General notes on Any image generator
  • Written as natural-language descriptions that the verified image models accept. Syntax for aspect ratio, quality and negative prompts differs by tool, so set those in your tool's own controls.

Source, license and attribution

Origin
Original by MarketerTools
Publisher
MarketerTools
License
Original work by MarketerTools, free to copy and use. Informed by the linked documentation; no third-party text is reproduced.
Platform assumptions checked
2026-10-11

Documentation and references behind this prompt

These informed the structure and the platform notes. A reference is not a license, and no third-party prompt text is copied here.

Spotted an attribution error, or are you a source owner with a request? Use the chat button at the bottom right and quote prompt ID img-004. We will correct or remove it.

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