HiDream-O1-Image-1.5vs.GPT Image 1 Mini
Which one is better?
In our own test both are on par. Neither is in the arena. GPT Image 1 Mini has no API price.
Test images
Same task, the first image of each. The task with the biggest difference is preselected.
Result for “Infographic”:HiDream-O1-Image-1.5 ahead
What the rating looks at: Numbers, labels, and visual organization.
“Ahead”: better in all three rating rounds. “Slightly ahead”: a higher value, but not in every round.
Test protocol of the images
Each test attempt uses the same archived prompt and one request. The first output of that attempt counts. Repeats after technical test failures are disclosed for the affected images. Files are normalized to 1,024 × 1,024 pixels without cropping. Provider resolution, randomness, quality tier and prompt processing can still differ. The images are a practical visual test, not a reconstruction of the arena configuration.
Character and detail
HiDream-O1-Image-1.5: manual, one request, first output, HiDream O1 Image 1.5, 1:1, 2K, n=1, no reference image, no negative prompt, Vivago web, 2 free credits, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Aug 16, 2026, 1:07 PM. Source
GPT Image 1 Mini: fal, requested 1024x1024, n=1, seed=provider random, quality low, Fal rounds per-request image plus text-token cost up to $0.01 for the fixed prompts, estimated cost $0.010000, generated Nov 1, 2026, 8:52 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6
HiDream-O1-Image-1.5 image SHA 256: 99db95d2f6f00dc7f8872b5562b7577a49065a120d15fc54f687ba624fe4cf6e
GPT Image 1 Mini image SHA 256: c0e2174457ec7197947f10d76d4c5a8fa49aec091b31652f0247cf7e11e903ba
Infographic
HiDream-O1-Image-1.5: manual, one request, first output, HiDream O1 Image 1.5, 1:1, 2K, n=1, no reference image, no negative prompt, Vivago web, 2 free credits, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Aug 16, 2026, 1:07 PM. Source
GPT Image 1 Mini: fal, requested 1024x1024, n=1, seed=provider random, quality low, Fal rounds per-request image plus text-token cost up to $0.01 for the fixed prompts, estimated cost $0.010000, generated Nov 1, 2026, 8:52 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f
HiDream-O1-Image-1.5 image SHA 256: 073d00d82d82a05c20f9117a18e71e21fe0300fd9f4985608be09726b1ee70a8
GPT Image 1 Mini image SHA 256: 08bac6b96a08de0ca51bedd1b6f0648e65d24461446b15231e80f668aaf6d603
Product photography
HiDream-O1-Image-1.5: manual, one request, first output, HiDream O1 Image 1.5, 1:1, 2K, n=1, no reference image, no negative prompt, Vivago web, 2 free credits, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Aug 16, 2026, 1:07 PM. Source
GPT Image 1 Mini: fal, requested 1024x1024, n=1, seed=provider random, quality low, Fal rounds per-request image plus text-token cost up to $0.01 for the fixed prompts, estimated cost $0.010000, generated Nov 1, 2026, 8:51 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3
HiDream-O1-Image-1.5 image SHA 256: 98de28b81a3551441936ce2ebcc0b418e69e9d5cf6ce8b1dc281bc90b05731dc
GPT Image 1 Mini image SHA 256: a5e15f006cd5c689b9588fa55b37ea0d610cd9edb4bd167fabefda5d72f21480
Typography and layout
HiDream-O1-Image-1.5: manual, one request, first output, HiDream O1 Image 1.5, 1:1, 2K, n=1, no reference image, no negative prompt, Vivago web, 2 free credits, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Aug 16, 2026, 1:07 PM. Source
GPT Image 1 Mini: fal, requested 1024x1024, n=1, seed=provider random, quality low, Fal rounds per-request image plus text-token cost up to $0.01 for the fixed prompts, estimated cost $0.010000, generated Nov 1, 2026, 8:51 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419
HiDream-O1-Image-1.5 image SHA 256: db5acbc9b443ea381bf6294997720fa246cf8a199f91d451aa1d7242fc4a348a
GPT Image 1 Mini image SHA 256: 16fcb3be0f7ea7a48eabaacb5052ebccc221c00dd9ed3ff9d8e2f38f91b66c15
The numbers at a glance
HiDream-O1-Image-1.5
not in the arena
GPT Image 1 Mini
not in the arena
HiDream-O1-Image-1.5
Rank 38 of 108
GPT Image 1 Mini
Rank 59 of 108
HiDream-O1-Image-1.5
fairly expensive
GPT Image 1 Mini
no API price
Ranks among the 21 image models with an arena rating and the 108 with a GraduallyBench run; prices compared with 28 models with an API price.
HiDream-O1-Image-1.5
- Subscription
- n/a No plan in Germany names exactly this model.
- Via API
- $0.08 per image, 100 images $8.
GPT Image 1 Mini
- Subscription
- No OpenAI subscription includes this model. Through other providers from €6.83 a month (Poe Basic, with limited points). 14 plans in Germany.
- Via API
- No API price known. Access: API.
- Weights
- unknown.
Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.
GraduallyBench from Nov 3, 2026 · API prices from Nov 6, 2026 · Subscription database from Sep 29, 2026 (38 days old)
All data side by side
The better value is bold. For ratings only when the gap is clear.
| Kennzahl | HiDream-O1-Image-1.5 | GPT Image 1 Mini |
|---|---|---|
| Ratings | ||
| Arena ratingfrom votes by users, higher is better | n/a | n/a |
| Arena rank | n/a | n/a |
| Arena votesmore votes, a safer rating | n/a | n/a |
| GraduallyBenchour own rating, 0 to 100 | 65 | 51 |
| GraduallyBench by task | ||
| Typography and layoutLegible text, hierarchy, and composition | 76 | 68 |
| Product photographyMaterials, reflections, and fine details | 51 | 74 |
| Character and detailAnatomy, clothing, and spatial consistency | 58 | 31 |
| InfographicNumbers, labels, and visual organization | 76 | 32 |
| API price | ||
| Per imagelower is better | $0.08 | n/a |
| 100 images | $8 | n/a |
| Profile | ||
| Released | June 2026 | n/a |
| Weightsopen means: runs locally | proprietary | unknown |
| Lifecycle | no notice | Deprecated; API shutdown announced for December 1, 2026 |
| Access | API, Web app | API |
| Parameters | not published | not published |
| Largest output | 2,048 × 2,048 pixels | not consistently published |
| Plans in Germanynaming exactly this model | n/a | 14 |
API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.
Sources: HiDream-O1-Image-1.5 model source (verified Sep 22, 2026) · GPT Image 1 Mini model source, status source (verified Nov 1, 2026)
Arena ratings by category
From blind votes on LMArena. “Ahead” means the lead is clear.
No shared arena score in the stored snapshot
The stored benchmark database contains no measurement for HiDream-O1-Image-1.5 and GPT Image 1 Mini from the same arena and category. Older model versions are not used as substitutes.
More comparisons
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