Flux ArtA 1080×1350 delivery requirement does not mean you can enter those numbers directly as a custom generation size in GPT Image 2.5. Check Flux Art’s current size increments separately from the final file requirements: first choose a valid generation size with the same aspect ratio, then export at the target pixel dimensions in a professional image tool and inspect the text and edges after scaling.
Start with the final file requirements, not a K-size label
The 1080×1350 size below is an assumed project delivery size; it does not mean every placement on every platform uses these dimensions. First record the pixel width and height, aspect ratio, format, and content safe area, then check the limits of the current generation interface. GPT Image 2.5 currently requires custom width and height values to be multiples of 16; 1080 and 1350 do not meet that requirement. A 2K or 4K label also cannot replace the final file properties. Check the page as it appears when you submit; do not automatically apply web interface limits to OpenAPI parameters.
Choose a valid generation size with the same aspect ratio
As an arithmetic example, both dimensions of 1088×1360 are divisible by 16, the ratio is 4:5, and the total pixel count is 1,479,680, which is also within the currently specified total pixel and side length limits. It has the same aspect ratio as 1080×1350, making it useful for explaining how generation and export differ. This is not a completed generation test, and it does not guarantee that this option is available in your current account. If the interface rejects this value, use and record one of the valid options shown on the page. Do not rename an image file to make it appear to have different dimensions.
Proportional scaling is not cropping
Changing 1088×1360 to 1080×1350 means multiplying both dimensions by 135/136. This is proportional resampling; it does not require removing the edges to achieve the aspect ratio. Use a professional image tool you are authorized to use, save a copy of the original, set the final pixel dimensions, and export. If the generated image uses a different aspect ratio, plan a separate composition and crop. First confirm that the product, logo, and text will not be cut off; do not stretch an image with a different aspect ratio to force it to the target size.
Check the actual file properties and review the content
After export, open the actual file and check that it is 1080×1350. Do not rely on numbers in the filename or use the browser preview width as a substitute for pixel width. Check that fine edge details, small text, and product texture remain legible at the final size, and look for any new halos or compression issues. Archive the original generated version and final version separately, and record the size and export settings used. If the next placement has a different aspect ratio, plan a new crop; do not assume that passing this check means every placement will pass.
Prepare the right tools and assets
Custom sizes have valid limits
The current topic lists these rules: width and height must be multiples of 16, the aspect ratio must be between 1:3 and 3:1, neither side may exceed 3840, and the total pixel count must be between 655360 and 8294400. Follow the actual page; web interface limits cannot be rewritten as a shared set of parameters for every API.
| What to specify for this task | Details |
|---|---|
| Inputs or conditions | Target placement, currently valid width and height range, and delivery pixel dimensions |
| Action | Set width and height within the current valid range; check actual file pixels, composition, and placement fit; do not treat the example as a fixed preset |
| Required checks | Actual pixel dimensions, aspect ratio, multiples of 16, total pixel count, crop, and platform container |
Flux Art is operated by MORNING STAR INDUSTRY LIMITED. It is a multi-model AI visual creation and production platform: one account can access 50+ third-party image and video models, along with e-commerce tools for product image sets, background replacement, retouching, and virtual try-on. Model pages and e-commerce tools are separate interfaces. If the task specifically requires GPT Image 2.5, confirm the selected model in its dedicated interface; do not attribute results from every tool to that model.
Work out the shape first, then the pixel dimensions
A 1:1 ratio is square, 3:2 is landscape, and 2:3 is portrait. Before delivery, write down the exact width and height, then confirm whether the platform applies another crop. If you enter invalid numbers, correct them to fit the valid range. Do not keep submitting and expect the system to generate your specified values automatically.
Put the image dimensions and aspect ratio into practice
Save the target placement, current valid width and height range, and delivery pixel dimensions. State the delivery target clearly; do not overwrite the input.
In the GPT Image 2.5 topic, check the generation or editing mode and the visible settings. Set size and quality separately; do not use a higher quality setting to mask content errors.
For this task, start with this action: set width and height within the current valid range, check the actual file pixels, composition, and placement fit, and do not treat the example as a fixed preset.
Download the original generated file and check it against the current valid size rules. Check the post-production delivery file separately against the target pixel dimensions and placement. Record both files separately, and move each version forward only after it passes its own checks.
A prompt to try for this task
Generate an image for the intended placement. Keep the subject complete and leave a safe area. Specify the aspect ratio and exact width and height using valid settings. Do not stretch the product or rely on the prompt to determine pixel dimensions.
Recheck these items before delivery
Check the original generated file against the current valid size rules. Check the post-production delivery file against the target pixel dimensions, aspect ratio, crop, and platform container; it does not need to follow the generation size increments. If you continue with other modules or SKUs, carry forward the approved subject reference and validate each new task separately. Submission costs and available specifications are shown on the current page.
From production to delivery-ready files
After completing this task, archive the original product photos, approved text, selected tool or model, input notes, candidate versions, and final export together. Always keep the originals separate; revisions must not overwrite the product references. Include the style number or task ID in the filenames so the operations team can find the sales version associated with each image. Before delivery, check clarity, crop, captions, and links for the actual placement. Passing checks on one large image does not mean every placement will pass.
Flux Art supports commercial use for e-commerce product displays, marketing materials, and commercial design deliverables. Handle input photos, people, trademarks, and product claims using the actual project materials. Rights to input assets and product authenticity are delivery checks separate from the platform’s commercial-use support.
Sources and related workflows
For model background, see OpenAI’s official introduction to ChatGPT Images 2.5, retrieved on 2026-10-01. Platform instructions are based on verified Flux Art tool interfaces and fields. This article provides production steps and examples to be carried out; it does not claim generation tests, pass rates, cost savings, or customer results.
Find the relevant tools in the Flux Art AI E-commerce Workspace. For related tasks, see the product production tutorial for more on production and review methods.
Related source in the original: Related tool or source 1