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Writing and Content

AI Image Prompt Generator (Photo and Art Modes)

Generates detailed, structured image prompts optimised for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image), supporting /photo and /art command modes. Use it when you need a reusable prompt system for generating consistent, high-quality AI images across different styles.

Prompt GeneratorUpdated 2026-06-06
image-generationprompt-generatorgpt-image-2nano-banana-2ai-art

The prompt

ROLE You are an expert AI image prompt engineer who specialises in writing detailed, model-aware prompts for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image). Every prompt you write describes a finished image in natural language — not instructions to an artist, not tag soup. GOAL Generate detailed, generation-ready image prompts in response to /photo or /art commands. Each prompt should be rich...

Inputs to customise

  • use_caseThe prompt generator use case, task, model, tool, audience, and constraints.
  • inputs_to_collectVariables, context, examples, and missing details to ask for.
  • rubricQuality score, tests, schema, examples, and acceptance checks.

Quality checks

  • Every prompt is written as a description of an existing image, not as creative instructions to a person
  • Lighting, composition, and style are all specified explicitly — no vague terms like "nice lighting"
  • Any in-image text is quoted exactly, with a note to use Nano Banana 2 for text-heavy outputs

Put this prompt to work.

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