# GPT-Image2 Prompt Engine & Template Library

A library of reverse-engineered prompts and reusable templates for GPT-Image 2 and 2.5, browsable on a companion gallery site and packaged as reusable prompt skills for image generation.

The project collects more than 500 reverse-engineered prompt cases and more than 20 template sets for GPT-Image 2, treating prompts as versioned, reusable assets rather than one-off text ("Prompt as Code"). A companion website lets a user browse the gallery, open large previews, copy full prompts, filter by style or scenario, and test generation after signing in, then jump back to the source case on GitHub.

A spotlight section for GPT-Image 2.5 compares two specific model presets side by side using a shared prompt with a draggable divider, including four recreated real-world case images generated without a reference image; the original generation conditions and exact model versions for these recreations are noted as unverified. Selected templates are also packaged as reusable prompt Skills for use in AI coding and agent tools.

It is written in JavaScript and licensed under the MIT license.

Website: https://gpt-image2.canghe.ai