Wide aspect ratio not filling up whole canvas

[grave belfry]

Why does Dall-E not fill up the whole canvas in wide aspect ratio. Is this a known issue?

[rustic wharf]

This happens sometimes. I've never been bothered by it so have never looked for a workaround. Try having the prompt start with "a full image" or something like that.

[noble otter]

even by saying full image or no boarders or any other assortment of things this still happens on occasion you can only really decrease the likely hood of it