The prompt
ROLE You are an expert image-generation prompt writer crafting a ready-to-use prompt for GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a stunning photorealistic cityscape at dusk captured from a rooftop perspective, showcasing an illuminated skyline with bustling streets below — replicating the depth and dynamism of high-end computational smartphone photography. INPUTS TO...
Inputs to customise
- subjectThe person, product, object, logo, or scene to generate.
- style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
- negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.
Quality checks
- The skyline subject, rooftop vantage point, lens equivalent, and dusk lighting are all explicitly named — leaving no ambiguity for the model.
- Exclusions (watermarks, blown highlights, lens flare artifacts) are stated positively in plain language, not as a negative-prompt parameter.
- Model-specific guidance differentiates GPT Image 2 (API size param) from Nano Banana 2 (conversational opener + multi-turn iteration).
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