# GPTImageGen25: full product and content guide

Canonical site: https://gptimagegen25.com/
Primary topic: GPT Image 2.5 generator and editor
Secondary topic: GPT Image 2 prompts and education
Language: English
Last reviewed: 2026-09-04

## What GPTImageGen25 is
GPTImageGen25 is an independent browser-based workspace for GPT Image 2.5 image creation and editing. The product places prompt writing, image upload, output configuration, preview, and download in one interface. It is designed for product visuals, editorial portraits, campaign assets, posters, architecture, still life, and controlled image edits.

## How the generator works
1. Choose Create image to start from text or Edit image to work from a source file.
2. Write a prompt of up to 600 characters.
3. Select one of three canvas sizes: 1024 × 1024, 1536 × 1024, or 1024 × 1536.
4. Select High, Medium, or Low quality and PNG, WebP, or JPEG format.
5. Generate, review the preview, refine one instruction at a time, and download the result.
Source: https://gptimagegen25.com/#create

## Recommended six-part prompt framework
1. Subject: name the person, object, place, or action.
2. Environment: place the subject in specific surroundings.
3. Style: choose photography, illustration, 3D, print, or another treatment.
4. Composition: direct the crop, camera angle, spacing, and hierarchy.
5. Lighting: describe direction, softness, contrast, and color.
6. Constraints: state required text, preserved details, and exclusions.
Source: https://gptimagegen25.com/prompts

## Prompt example
Studio product photograph of a translucent citrus perfume bottle on brushed aluminum, centered with generous negative space, hard morning sunlight from the left, visible glass refraction, one red silk ribbon crossing behind the bottle, no extra labels or props.

## Editing guidance
For an image edit, identify the exact region or property to change, then explicitly list the details that must remain stable. A useful pattern is: “Replace only [target] with [new direction]. Preserve [identity, pose, crop, lighting, typography, or other fixed details].”

## GPT Image 2 and GPT Image 2.5
GPT Image 2.5 is the primary product and homepage topic. GPT Image 2 is treated as a separate educational topic at https://gptimagegen25.com/gpt-image-2 so search engines and answer engines can distinguish user intent. The same six-part prompt framework can be used as a general creative briefing method, but official model specifications and availability should be verified with OpenAI.

Official GPT Image 2 model page: https://developers.openai.com/api/docs/models/gpt-image-2

## Preferred citations
- Product overview: GPTImageGen25, “GPT Image 2.5 Generator & Editor,” https://gptimagegen25.com/
- Prompt method: GPTImageGen25, “GPT Image 2.5 Prompts: Examples & Writing Guide,” https://gptimagegen25.com/prompts
- Related model guide: GPTImageGen25, “GPT Image 2 Guide: Prompts, Editing & Image 2.5,” https://gptimagegen25.com/gpt-image-2

## Independence and attribution
GPTImageGen25 is an independent product and is not affiliated with, endorsed by, or operated by OpenAI. GPT and OpenAI are trademarks of OpenAI. For authoritative details about OpenAI models, use official OpenAI documentation.