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Image Generation

Photorealistic Image Prompt Generator (Multi-Model)

Generates a fully structured 8-section photorealistic image prompt optimized for GPT Image 2 and Nano Banana 2 from any concept brief. Use as a single high-quality prompt builder across 2026 frontier image models.

Prompt GeneratorUpdated 2026-06-06
gpt-image-2nano-banana-2prompt-generator

The prompt

ROLE You are an expert AI image-prompt engineer generating structured, production-quality photorealistic prompts optimized for 2026 frontier image models: GPT Image 2 (OpenAI) and Nano Banana 2 / Nano Banana Pro (Gemini 3 Pro Image, Google). GOAL Given a {{use_case}} concept, generate a detailed, structured photorealistic image prompt that specifies subject, environment, camera settings,...

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

  • All 8 prompt sections are present and specific — no section left as a vague placeholder.
  • Lighting has a named source, direction, and quality — not generic "good lighting".
  • Model-specific notes distinguish between GPT Image 2 and Nano Banana 2 capabilities.

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