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HiDream-O1-Imagevs.Ideogram 4.5

Which one is better?

In our own test, Ideogram 4.5 leads. Ideogram 4.5 has no arena rating yet. Ideogram 4.5 costs 2.5 times as much per image.

Same prompt, two images

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

HiDream-O1-Image: Infographic, first image from the fixed test run
HiDream-O1-Image25 out of 100
Ideogram 4.5: Infographic, first image from the fixed test run
Ideogram 4.582 out of 100

Result for “Infographic”:Ideogram 4.5 ahead

Prompt given to both modelsCreate a square German infographic titled SO FUNKTIONIERT PHOTOSYNTHESE. Show exactly four numbered steps in this order: 1 LICHT, 2 WASSER, 3 CO₂, 4 ZUCKER + SAUERSTOFF. Use a clean editorial science style with one plant cross-section, simple arrows, high contrast, legible labels, and no other text.

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

Both models receive the same archived prompt in exactly one request, and the first result counts. 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: fal, requested 1024x1024, n=1, seed=1735022440, estimated cost $0.010486, generated Aug 14, 2026, 1:53 PM. Source

Ideogram 4.5: fal, requested 1024x1024, n=1, seed=676327336, prompt expansion disabled, quality low, estimated cost $0.030000, generated Nov 1, 2026, 8:44 PM. Source

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

HiDream-O1-Image image SHA 256: 9ac2cbe23ee6a63b0daacd665a40c3471c52c52fd6ad23e46d3027bb95f8c880

Ideogram 4.5 image SHA 256: 765cb852ecb10a396bad4bd18c2dc9fcc77221ffff3f0b94ef9eccf4d190b418

Infographic

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

Ideogram 4.5: fal, requested 1024x1024, n=1, seed=1482950298, prompt expansion disabled, quality low, estimated cost $0.030000, generated Nov 1, 2026, 8:44 PM. Source

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

HiDream-O1-Image image SHA 256: 258eece8b53e4df0c990b78dee2e02ec57569b1c823c3feff2ab54671240d66f

Ideogram 4.5 image SHA 256: c97b4321e68bf1617a4dc96b5e1f9372344b09b9ff987f07d0e9813e6210c656

Product photography

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

Ideogram 4.5: fal, requested 1024x1024, n=1, seed=1376877115, prompt expansion disabled, quality low, estimated cost $0.030000, generated Nov 1, 2026, 8:44 PM. Source

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

HiDream-O1-Image image SHA 256: 5a9cd3c59556412e4de93a3ef5c4121ec12b6cc02730cad527619c2d8a889783

Ideogram 4.5 image SHA 256: b9427281a64b3103f52f439b8797bd11763f813a8ef142bf79d96e936b349ae1

Typography and layout

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

Ideogram 4.5: fal, requested 1024x1024, n=1, seed=988679089, prompt expansion disabled, quality low, estimated cost $0.030000, generated Nov 1, 2026, 8:44 PM. Source

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

HiDream-O1-Image image SHA 256: 418a9b974b87b751ad2e4e98cdf6b8d7e2f8f352aed63d25be84c02377f310d1

Ideogram 4.5 image SHA 256: ebe1fe3dccf258807db9a9063c1034185c1b3e91f0d8c9bd86c53525d374dd9c

The numbers at a glance

Arena ratingfrom votes by users · higher is better
1,115

HiDream-O1-Image

Rank 20 of 22

n/a

Ideogram 4.5

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
20

HiDream-O1-Image

Rank 66 of 74

56

Ideogram 4.5

Rank 38 of 74

Price per imagedollars through the API · lower is better
$0.04

HiDream-O1-Image

fairly cheap

$0.10

Ideogram 4.5

expensive

Ranks among the 22 image models with an arena rating and the 74 with a GraduallyBench run; prices compared with 28 models with an API price.

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.

Ideogram 4.5

Subscription
No Ideogram subscription includes this model. Through other providers from ≈ €9.59 a month (Krea Basic, with limited credits). 33 plans in Germany.
Via API
$0.10 per image, 100 images $10.
Weights
unknown.

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

Arena rating (LMArena) from Oct 28, 2026 · GraduallyBench from Nov 1, 2026 · API prices from Oct 28, 2026 · Subscription database from Sep 29, 2026 (34 days old)

All data side by side

The better value is bold. For ratings only when the gap is clear.

KennzahlHiDream-O1-ImageIdeogram 4.5
Ratings
Arena ratingfrom votes by users, higher is better1,115n/a
Arena rankRank 20 of 22n/a
Arena votesmore votes, a safer rating77,624n/a
GraduallyBenchour own rating, 0 to 1002056
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition816
Product photographyMaterials, reflections, and fine details1959
Character and detailAnatomy, clothing, and spatial consistency2768
InfographicNumbers, labels, and visual organization2582
API price
Per imagelower is better$0.04$0.10
100 images$4$10
Profile
ReleasedMay 2026n/a
Weightsopen means: runs locallyopenunknown
AccessAPI, localAPI
Parameters8 billionnot published
Largest output2,048 × 2,048 pixelsnot consistently published
Plans in Germanynaming exactly this modeln/a33

API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.

Sources: HiDream-O1-Image model source (verified Aug 15, 2026) · Ideogram 4.5 model source (verified Nov 1, 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-ImageIdeogram 4.5
Text to Image ArenaHiDream-O1-Image: 975Ideogram 4.5: 1,015Ideogram 4.5 ahead
Image Editing ArenaHiDream-O1-Image: 954Ideogram 4.5: 1,070Ideogram 4.5 ahead

Artificial Analysis from Oct 28, 2026

All individual values with sources
RatingHiDream-O1-ImageIdeogram 4.5Source
Text to Image Arena9751,015Artificial AnalysisRetrieved Oct 28, 2026
Image Editing Arena9541,070Artificial AnalysisRetrieved Oct 28, 2026

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