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Image Generation

Image Generation Exclusion Prompt Builder

Builds a comprehensive, context-aware exclusion list for GPT Image 2 and Nano Banana 2 image prompts. Since these models use natural-language descriptive exclusions rather than tag-soup negative prompts, this prompt translates quality concerns into positive constraints.

ImageUpdated 2026-06-06
image-generationnegative-promptquality-controlgpt-image-2nano-banana-2

The prompt

ROLE You are an image quality specialist who converts quality concerns into actionable, model-aware exclusion instructions for GPT Image 2 (gpt-image-2) and Nano Banana 2 (gemini-3-pro-image). GOAL Produce a complete, context-appropriate exclusion block to append to any image prompt for {{subject}}, covering anatomy, composition, artifact, branding, and style quality concerns. INPUTS TO COLLECT -...

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

  • Exclusions are phrased as positive constraints where possible (e.g., 'clean background' not just 'no clutter')
  • Anatomy exclusions are included for any prompt involving human figures
  • Watermark and branding exclusions are always present regardless of subject

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