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Ideogram says its Ideogram 4.5 Precise Edit workflow can change a selected area while preserving the rest of an image. Its API documentation says untouched pixels are copied exactly and the output keeps the source image’s width and height. Those are Ideogram’s claims, not independently verified results.
How Ideogram Precise Edit is supposed to work
Ideogram describes Precise Edit as an image-editing workflow in which a prompt specifies the desired change and a mask limits where that change can occur. In its API overview, Ideogram calls Ideogram 4.5 “the most precise edit model” and says users can chain edits with minimal drift.
The idea is to constrain the edit rather than regenerate the entire image: select or mask the area to change, then describe the change in a prompt. Ideogram says its API can also accept up to four reference images to guide an edit.
What “preserve the rest” means in Ideogram’s claim
Ideogram’s API documentation states: “With Precise Edit, pixels the edit doesn’t touch are copied exactly from your image, and the result comes back at your image’s own width and height.” That is a specific claim about pixels outside the edited area and the output dimensions—not a guarantee that every prompt will produce the intended change inside the selected area.
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Ideogram’s Ideogram 4.5 model page shows examples of changing color and detail, editing high-resolution images, and preserving surrounding image content. These examples and its model comparisons are produced by Ideogram; they are not an independent evaluation of how reliably the workflow preserves an image across different inputs.
Mask behavior depends on the editing interface
Ideogram’s developer materials describe editing a starting image with a mask and a prompt. Its legacy Edit endpoint documentation describes a black-and-white mask with the same dimensions as the source image, where black marks the regions to edit. That is guidance for the legacy endpoint; it should not be assumed to describe every current Ideogram interface or API workflow.
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What is—and is not—independently established
The official materials reviewed for this article do not provide independent performance testing, a success rate, or a user study establishing how often untouched areas remain unchanged. Ideogram’s statements about exact pixel copying and minimal drift over successive edits should therefore be treated as vendor claims. If preservation is critical, inspect the output against the original rather than relying on the feature description alone.
For a practical comparison with another editing tool, the useful questions are whether you can restrict edits with a mask or selection, how it handles unedited regions, whether output dimensions are preserved, how consistent repeated edits remain, and whether reference images are supported. The cited Ideogram pages do not provide neutral comparative testing across those criteria.
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Related feature: editing transparent images
Ideogram separately describes editing existing images with transparent backgrounds using natural-language prompts while retaining transparency. Its transparent-image editing page says the feature is available to all users, including free accounts. Availability can change, so check the current page for the latest access details.
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