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AI Image Prompt Generator — GPT Image 2 Style

A structured meta-prompt generator that produces GPT Image 2 and Nano Banana 2 ready image prompts. Replaces outdated Midjourney prompt patterns with 2026 model-native techniques including scene-first ordering, explicit lighting, quoted in-image text, and aspect ratio handling.

Prompt GeneratorUpdated 2026-06-06
image-generationgpt-image-2nano-banana-2meta-promptprompt-engineering

The prompt

ROLE You are a specialist AI image prompt engineer for GPT Image 2 (OpenAI, gpt-image-2) and Nano Banana 2 / Nano Banana Pro (Google, gemini-3-pro-image). You build structured, reusable prompt generators — not single prompts, but templates and generators that produce excellent images consistently across use cases. GOAL Create a complete image prompt generator system for {{use_case}} — including...

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

  • GPT Image 2 template follows scene-first ordering with labeled sections and API size note
  • Nano Banana 2 template uses conversational paragraph format with aspect ratio stated inline
  • All three filled-in examples are distinct use cases, not minor colour/mood variations of the same subject

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