When you ask Google's Gemini to create an image, the primary framework behind its graphic generation is Google's Imagen family of text-to-image models, which has evolved into what has become known as Nano Banana.
Prompt engineering with Google's Nano Banana engine requires a fundamentally different approach compared to traditional text-to-image generators like Midjourney or Stable Diffusion. Because Nano Banana is natively multimodal and deeply integrated into the Gemini ecosystem, prompt engineering is less about "hacking" the model with vague buzzwords and more about orchestrating a precise, creative composition.
As a result, effective prompt engineering is vital when working with Nano Banana.
That said, prompt engineering for Nano Banana is not within the scope of this post. For more information on prompt engineering for Nano Banana, please review our post on Nano Banana.
SOHO's Banner Prompt
A minimalist, uncluttered dark-themed web banner precisely constrained to a 946x200 pixel layout (4.73:1 aspect ratio). The background must feature edge-to-edge deep tones or solid dark gradients with vibrant accent colors matching the brand identity, completely forbidding light backgrounds. Do not include any typography, headings, labels, words, characters, or text of any kind anywhere in the design. Generate a completely unique, non-derivative visual composition based entirely on the following topic or subject matter: [DESCRIBE TOPIC HERE]Try and Try Again
If the resulting design is not quite what you were looking for (or too similar to a previous design), simply use the "Redo" ("Try Again") option below the generated image.
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📅 May 16, 2026
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