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HiDream-O1-Image-1.5vs.HiDream-O1-Image

Is the extra cost worth it?

If quality matters to you, yes. In our own test, HiDream-O1-Image-1.5 leads. HiDream-O1-Image-1.5 has no arena rating yet. HiDream-O1-Image costs only half per image.

Test images

Same task, the first image of each. The task with the biggest difference is preselected.

HiDream-O1-Image-1.5: Typography and layout, first image from the fixed test run
HiDream-O1-Image-1.576 out of 100
HiDream-O1-Image: Typography and layout, first image from the fixed test run
HiDream-O1-Image18 out of 100

Result for “Typography and layout”:HiDream-O1-Image-1.5 ahead

Prompt given to both modelsCreate a square editorial poster for an imaginary night train called MONDFALTER. Show the exact German headline MONDFALTER and the exact subline BERLIN NACH LISSABON. Use a restrained midnight-blue and warm-cream palette, one stylized moth, strong Swiss-grid typography, generous negative space, and no additional words or logos.

What the rating looks at: Legible text, hierarchy, and composition.

“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

HiDream-O1-Image: fal, requested 1024x1024, n=1, seed=1735022440, estimated cost $0.010486, generated Aug 14, 2026, 1:53 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

HiDream-O1-Image-1.5 image SHA 256: 99db95d2f6f00dc7f8872b5562b7577a49065a120d15fc54f687ba624fe4cf6e

HiDream-O1-Image image SHA 256: 9ac2cbe23ee6a63b0daacd665a40c3471c52c52fd6ad23e46d3027bb95f8c880

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

HiDream-O1-Image: fal, requested 1024x1024, n=1, seed=1456348218, estimated cost $0.010486, generated Aug 14, 2026, 1:53 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

HiDream-O1-Image-1.5 image SHA 256: 073d00d82d82a05c20f9117a18e71e21fe0300fd9f4985608be09726b1ee70a8

HiDream-O1-Image image SHA 256: 258eece8b53e4df0c990b78dee2e02ec57569b1c823c3feff2ab54671240d66f

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

HiDream-O1-Image: fal, requested 1024x1024, n=1, seed=124666889, estimated cost $0.010486, generated Aug 14, 2026, 1:53 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

HiDream-O1-Image-1.5 image SHA 256: 98de28b81a3551441936ce2ebcc0b418e69e9d5cf6ce8b1dc281bc90b05731dc

HiDream-O1-Image image SHA 256: 5a9cd3c59556412e4de93a3ef5c4121ec12b6cc02730cad527619c2d8a889783

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

HiDream-O1-Image: fal, requested 1024x1024, n=1, seed=2131088503, estimated cost $0.010486, generated Aug 14, 2026, 2:41 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

HiDream-O1-Image-1.5 image SHA 256: db5acbc9b443ea381bf6294997720fa246cf8a199f91d451aa1d7242fc4a348a

HiDream-O1-Image image SHA 256: 418a9b974b87b751ad2e4e98cdf6b8d7e2f8f352aed63d25be84c02377f310d1

The numbers at a glance

Arena ratingfrom votes by users · higher is better
n/a

HiDream-O1-Image-1.5

not in the arena

1,115

HiDream-O1-Image

Rank 19 of 21

GraduallyBenchour own rating, 0 to 100 · higher is better
65

HiDream-O1-Image-1.5

Rank 38 of 108

34

HiDream-O1-Image

Rank 77 of 108

Price per imagedollars through the API · lower is better
$0.08

HiDream-O1-Image-1.5

fairly expensive

$0.04

HiDream-O1-Image

fairly cheap

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.

HiDream-O1-Image

Subscription
n/a No plan in Germany names exactly this model.
Via API
$0.04 per image, 100 images $4.
License
Open weights.

Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.

Arena rating (LMArena) from Nov 6, 2026 · 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.

KennzahlHiDream-O1-Image-1.5HiDream-O1-Image
Ratings
Arena ratingfrom votes by users, higher is bettern/a1,115
Arena rankn/aRank 19 of 21
Arena votesmore votes, a safer ratingn/a79,970
GraduallyBenchour own rating, 0 to 1006534
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition7618
Product photographyMaterials, reflections, and fine details5131
Character and detailAnatomy, clothing, and spatial consistency5845
InfographicNumbers, labels, and visual organization7643
API price
Per imagelower is better$0.08$0.04
100 images$8$4
Profile
ReleasedJune 2026May 2026
Weightsopen means: runs locallyproprietaryopen
AccessAPI, Web appAPI, local
Parametersnot published8 billion
Largest output2,048 × 2,048 pixels2,048 × 2,048 pixels
Plans in Germanynaming exactly this modeln/an/a

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) · HiDream-O1-Image model source (verified Aug 15, 2026)

Arena ratings by category

From blind votes on LMArena. “Ahead” means the lead is clear.

Arena rating per categoryfrom votes by users · higher is betterHiDream-O1-Image-1.5HiDream-O1-Image
Text to Image ArenaHiDream-O1-Image-1.5: 1,018HiDream-O1-Image: 978HiDream-O1-Image-1.5 ahead

Artificial Analysis from Nov 6, 2026

All individual values with sources
RatingHiDream-O1-Image-1.5HiDream-O1-ImageSource
Text to Image Arena1,018978Artificial AnalysisRetrieved Nov 6, 2026

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