How do I change aspect ratio and settings in Grok Imagine?
Updated July 2026
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Grok Imagine has grown from a fixed-format novelty into a tool with real controls, but they are spread across surfaces and versions, and some settings people expect simply do not exist yet. Here is what you can actually adjust in mid-2026.
The controls that exist today
On grok.com/imagine and in the mobile apps, current Grok Imagine versions expose a set of aspect ratio presets covering square, portrait, and landscape formats for social, widescreen, and vertical use - reports of the exact count vary by app version, with recent versions offering broad preset coverage and outputs at 1K or 2K resolution. You can also start from an uploaded image (image-to-image) and use the editing mode to modify a generation with a follow-up prompt.
In the Grok chat on X, controls are thinner: you mostly get the default format, and steering happens through prompt wording ("wide cinematic banner", "vertical poster") with less reliable results than the dedicated Imagine interface.
Settings people look for that are not there
There is no seed control for reproducibility, no negative prompt field, no batch-size setting, no style preset library, and no way to save a settings combination as a template. Fine typography and exact brand-color adherence remain weak points of the model itself, not just the UI. If you need an exact non-preset dimension, you will be outpainting or cropping externally.
Users also report a small Grok mark on exports from the consumer apps on some tiers, which matters if the destination is anything other than an X post.
Settings via the API
The xAI API exposes Grok image generation programmatically, with parameters set per request rather than through in-app toggles. That makes settings reproducible - the same request gives you the same configuration every time - which is what template-driven work actually requires.