Image model for text posters and reference image transformations
gpt-image-2:reverse is a publicly callable variant of GPT Image 2, designed for text-to-image generation and visual transformations based on reference images. It is suitable for organizing requirements for titles, subjects, color schemes, and compositions into posters, infographics, product concepts, or character design images, and can also describe desired modifications around existing assets. On this platform, you can create through both generation and editing entry points, receiving image files or asynchronous task results.
Clarify capacity, input/output, and invocation methods before selecting a model.
Creation methods
Text-to-image generation; combined editing with images and text instructions
Reference image input
The editing endpoint accepts a single URL or up to 16 URLs; local files can be uploaded using multipart
Number of generations
Request n can be 1–10; b64_json output supports only 1 image
Output formats
PNG, JPEG, WebP; supports URL or b64_json responses
Canvas settings
size uses auto or WIDTHxHEIGHT; width and height must be multiples of 16, with the long side not exceeding 3840 pixels
Dimension limits
Total pixels 655,360–8,294,400; aspect ratio not exceeding 3:1
Task delivery
Image data is returned synchronously; callback_url mode first returns task_id
Understand GPT Image 2's image creation positioning separately from this endpoint's invocation specifications: the quantities, dimensions, and response formats above apply to requests on this platform.
Core Capabilities
Learn what gpt-image-2:reverse can bring to your work.
Bring Text into Visual Design
GPT Image 2 is well suited for visual creations that include titles, labels, and explanatory text. Prompts can specify text content, subject placement, backgrounds, and information hierarchy at the same time, making text part of the overall composition. Posters and infographics are tasks worth trying first; after generating an image, spelling, numbers, and reading order should still be checked word by word.
Targeted Revisions Around Reference Materials
When editing, submit the original image together with modification instructions, clearly specifying which elements to retain and which parts to change. For example, preserve the product outline, viewpoint, lighting, and shadows while adjusting only the color or scene. Multiple reference images can separately provide subject, style, and composition references, but their respective purposes should be explained to avoid conflicting requirements from different materials.
Connect One-Off Creation to Production Workflows
Both generation and editing can deliver image results that are convenient for subsequent processing. When comparing options, you can request multiple candidates; when embedding in an application, you can choose image links or Base64 data. Longer tasks can use callbacks to receive final results, separating creative submission, completion waiting, and image saving into clear processing steps.
Applicable Scenarios
Start with specific tasks to find where the model can be effective.
Event Posters and Knowledge Cards
Enter the event name, main title, short description, brand color palette, and canvas requirements to create promotional posters or knowledge cards. When there is a lot of information, first define title, subject, and annotation areas to avoid placing all content at the same level. After delivery, focus on checking the text and facts in the image, then refine the layout before official publication.
Product Visuals and Scene Mockups
Use a product photo as editing input, describe the desired background, material atmosphere, and display method, and generate key visuals, lifestyle images, or packaging mockups. Clearly state the shapes and marks that must be preserved in the instructions to make different creative options easier to compare. The results are suitable for concept exploration; formal product displays still require verification of colors, structure, and brand details.
Character Design and Storyboard Preparation
Enter a character description or reference image, and request organized expressions, clothing, equipment, and different views in the image to create character design sheets. You can also generate static images for storyboard preparation based on scene descriptions. Using the same set of appearance descriptions helps reduce deviations, but character consistency across sequential images still needs to be checked and adjusted one by one.
How to Choose This Model
Choose based on task complexity, input materials, and expected results.
Choose It for Image-and-Text Creation and Asset Adaptation
When a task includes both titles and layout and also requires adjusting visual content around existing images, you can prioritize trying GPT Image 2. First validate the generated image using real copy and reference assets, then decide whether to incorporate it into the production workflow. gpt-image-2:reverse and :official are publicly callable variants of the same base model and should not be understood as image models from different generations.
Compare Relevant Versions by Production Goal
If the work focuses on quickly generating candidates, you can further compare GPT Image 2.5 Flare; if high fidelity and fine-grained control matter more, you can compare Sunburst. Existing GPT Image 1.5 workflows are well suited to parallel testing with the same prompts and assets, observing whether text, subject preservation, and composition better meet the goal rather than replacing it based solely on version numbers.
Get Started
From a small-scale task to formal integration.
01
Prepare the Task and Materials
Define the goal, required inputs, and output requirements, using real business examples as a starting point.
02
Try It in the API Testing Area
Open the trial page, confirm the parameters supported by this entry point, then submit a small-scale task to review the results.
03
Integrate According to the API Documentation
Keep the complete model ID, use the request format specified in the documentation, and confirm billing rules on the Pricing page.
Usage Limitations
Before formal use, understand the scope of output quality and capabilities.
Text in images is suitable for visual design, but it is not equivalent to a deterministic typesetting tool. Dense small text, complex tables, precise label placement, and strict structures may require multiple adjustments; when prices, dates, or factual content are involved, verify every piece of text, and use design software for final typesetting when necessary.
Reference-image editing is not locked pixel by pixel. Even if instructions require preserving the subject, details, edges, colors, or backgrounds may still change. This model is best used with instructions organized around clear items to preserve and modify; if the task must control modified areas through masks, choose a callable variant that explicitly supports that operation.
Custom dimensions must simultaneously meet constraints for side lengths, total pixel count, and aspect ratio; do not check only the WIDTHxHEIGHT format. Multiple outputs and Base64 returns also have combined limitations; when there are many reference images, distinguish their purposes, then verify the actual dimensions and content of each image after results are generated.
Frequently Asked Questions
Answers to common questions about using gpt-image-2:reverse.
Is gpt-image-2:reverse a separate new model?
No. It is a public API ID variant of GPT Image 2, with the same core purpose of image generation and editing. Specify the full ID when calling it to explicitly select this endpoint; do not interpret the :reverse suffix as a new-generation model, or infer image-quality tier differences from it compared with other variants.
How do I modify an existing image instead of generating a new one?
Use /openai/images/edits, submit image and prompt, and explicitly set model to gpt-image-2:reverse. Images can be provided as a URL or uploaded as a local file. It is best to separately state what to preserve and what to change, for example, preserve the product and camera angle while only changing the background, then check the subject details after completion.
Can I reference multiple images at the same time?
The editing endpoint can accept up to 16 reference images. Use a URL array for JSON requests and multipart for local files. It is recommended to explain the role of each image: which provides the subject, which provides the style, and which provides the layout. Multi-image input does not mean that different people, products, or compositions will automatically be accurately merged.
How do I choose the aspect ratio and response format?
Use size=auto when you want the model to determine the aspect ratio based on the creative intent; specify WIDTHxHEIGHT when fixed pixels are needed, subject to size constraints. Results can be returned as URL or b64_json; use URL when comparing multiple options at once, while Base64 responses support only a single image. Check the actual dimensions after downloading.
Does it include ChatGPT's full image workflow?
This endpoint directly handles image generation or editing requests and returns image results; it should not be considered equivalent to the full ChatGPT experience, which includes reasoning, search, or multi-step orchestration. For iterative revisions, have the application save the previous image and submit another edit; longer tasks can receive completed results through callback_url.
Model information · Updated: 2026-10-01. See the API and pricing sections for request parameters and billing rules.