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.

Test 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-Image43 out of 100

Ideogram 4.5: Infographic, first image from the fixed test run — Ideogram 4.585 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

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: 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 19 of 21

n/a

Ideogram 4.5

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better

HiDream-O1-Image

Rank 77 of 108

Ideogram 4.5

Rank 45 of 108

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 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

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 ≈ €9.54 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 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.

Kennzahl	HiDream-O1-Image	Ideogram 4.5
Ratings
Arena ratingfrom votes by users, higher is better	1,115	n/a
Arena rank	Rank 19 of 21	n/a
Arena votesmore votes, a safer rating	79,970	n/a
GraduallyBenchour own rating, 0 to 100	34	63
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	18	28
Product photographyMaterials, reflections, and fine details	31	69
Character and detailAnatomy, clothing, and spatial consistency	45	68
InfographicNumbers, labels, and visual organization	43	85
API price
Per imagelower is better	$0.04	$0.10
100 images	$4	$10
Profile
Released	May 2026	n/a
Weightsopen means: runs locally	open	unknown
Access	API, local	API
Parameters	8 billion	not published
Largest output	2,048 × 2,048 pixels	not consistently published
Plans in Germanynaming exactly this model	n/a	33

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 Arena9781,016ahead

Image Editing Arena9531,067ahead

Artificial Analysis from Nov 6, 2026

All individual values with sources

Rating	HiDream-O1-Image	Ideogram 4.5	Source
Text to Image Arena	978	1,016	Artificial AnalysisRetrieved Nov 6, 2026
Image Editing Arena	953	1,067	Artificial AnalysisRetrieved Nov 6, 2026

More comparisons

Compare HiDream-O1-Image and Ideogram 4.5 with the models people compare them with most often.

Compare another matchup

First image modelSecond image model