What sizes does DALL·E 3 support?

Three — 1024×1024 (square), 1792×1024 (landscape) and 1024×1792 (portrait). DALL·E 3 does not support arbitrary dimensions through the API.

How much does an HD image cost versus standard?

Standard square images are the cheapest. HD roughly doubles the standard price, and the non-square sizes cost more again at both quality levels. The picker shows the exact figure for each combination.

HD helps for images with fine detail, text-like elements, or anything destined for print or large displays. For thumbnails, drafts and social posts, standard quality is usually indistinguishable and half the price.

Are these prices guaranteed current?

They are published list-price estimates and are labelled as such. OpenAI changes pricing periodically, so confirm the current rate in your OpenAI dashboard before budgeting at volume.

What is the DALL·E 3 Size & Quality Picker?

Interactive picker for DALL·E 3's supported sizes (1024×1024, 1792×1024, 1024×1792) and quality levels (standard / HD). See the API cost per image and projected batch cost instantly, all in your browser. It runs free in your browser on Gera Tools, with nothing uploaded.

DALL·E 3 Size & Quality Picker

Name: DALL·E 3 Size & Quality Picker
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

Get one useful tool a week

Like this tool? Enter your email and we'll send you one genuinely useful Gera tool a week — plus a link to come back to this one. No spam, one-click unsubscribe any time.

DALL·E 3 size & quality picker

DALL·E 3 only offers three sizes and two quality levels, but the six resulting combinations have noticeably different prices. This picker shows the cost per image for any combination and multiplies it by your batch size so you can budget a generation run before you spend a cent.

How DALL·E 3 pricing works

OpenAI prices DALL·E 3 per generated image, and the price depends on two factors:

Quality — standard or hd. HD adds a second refinement pass for finer detail and roughly doubles the cost.
Size — the square 1024×1024 is the cheapest; the wider 1792×1024 and taller 1024×1792 cost more because they contain more pixels.

There is no per-token billing here as with text models — it’s a flat fee per image, so total cost is simply price-per-image × number of images.

Tips

Draft in standard, finish in HD. Iterate on composition cheaply at standard quality, then regenerate the winner in HD.
Match aspect ratio to use. Landscape for hero banners, portrait for phone wallpapers and stories, square for avatars and thumbnails.
Estimate before batching. A 200-image HD landscape run is materially more expensive than the same run at standard square — check the total here first.

The six combinations and their use cases

DALL-E 3 supports exactly three sizes and two quality levels, giving six possible combinations. Each suits different output contexts:

Size	Quality	Best for
1024×1024	Standard	Avatars, thumbnails, social posts, rapid prototyping
1024×1024	HD	Product imagery, icons needing fine detail
1792×1024	Standard	Hero banners, website headers, YouTube thumbnails
1792×1024	HD	Print-destined landscape shots, high-res marketing
1024×1792	Standard	Mobile wallpapers, Instagram stories, portrait posts
1024×1792	HD	Print portraits, detailed tall compositions

HD quality adds a refinement pass that improves fine texture, edges, and clarity on complex scenes. For simple or abstract imagery the difference between standard and HD is minimal, making HD most cost-effective when detail genuinely matters in the final use.

Why DALL-E 3 has only three sizes

Unlike text models that accept arbitrary input lengths, image diffusion models generate at fixed resolutions natively. DALL-E 3’s three sizes correspond to approximate aspect ratios (1:1, 16:9, 9:16) that cover most practical use cases. Arbitrary resolution would require post-generation upscaling or cropping, which changes the composition. For images needing a non-standard crop, generate at the closest native size and crop afterward.

Batch cost example

For example, 50 images at 1792×1024 HD costs noticeably more than 50 images at 1024×1024 standard. Using this picker, you can compare the two totals side by side before committing to a generation run — which often leads to choosing standard quality for the exploratory phase and only upgrading to HD for the final selections.