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HiDream-O1-Image-1.5vs.FLUX.1 Kontext [pro]

Which one is better?

In our own test, HiDream-O1-Image-1.5 leads. Neither is in the arena. FLUX.1 Kontext [pro] has no API price.

Same prompt, two images

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

HiDream-O1-Image-1.5: Infographic, first image from the fixed test run
HiDream-O1-Image-1.575 out of 100
FLUX.1 Kontext [pro]: Infographic, first image from the fixed test run
FLUX.1 Kontext [pro]33 out of 100

Result for “Infographic”:HiDream-O1-Image-1.5 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-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

FLUX.1 Kontext [pro]: fal, aspect ratio 1:1, n=1, seed=1661036738, Fal schema has no resolution field; official 1:1 example returns 1024x1024, estimated cost $0.040000, generated Nov 1, 2026, 9:02 PM. Source

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

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

FLUX.1 Kontext [pro] image SHA 256: a2b5cfe16c918f33c56d04a35a8cea5433ea17db1f41ab3f3ccefdc20791a3d1

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

FLUX.1 Kontext [pro]: fal, aspect ratio 1:1, n=1, seed=261169301, Fal schema has no resolution field; official 1:1 example returns 1024x1024, estimated cost $0.040000, generated Nov 1, 2026, 9:02 PM. Source

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

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

FLUX.1 Kontext [pro] image SHA 256: 8ec7449c0fd1b68f984aaa28dda6cb4d74a053cd88af42c10d79fac31980ffbe

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

FLUX.1 Kontext [pro]: fal, aspect ratio 1:1, n=1, seed=3307245438, Fal schema has no resolution field; official 1:1 example returns 1024x1024, estimated cost $0.040000, generated Nov 1, 2026, 9:02 PM. Source

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

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

FLUX.1 Kontext [pro] image SHA 256: 367531e667dd9156abe9666dc571fc122174a66788d726b2b4ab06d9c8226d9d

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

FLUX.1 Kontext [pro]: fal, aspect ratio 1:1, n=1, seed=4284980986, Fal schema has no resolution field; official 1:1 example returns 1024x1024, estimated cost $0.040000, generated Nov 1, 2026, 9:02 PM. Source

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

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

FLUX.1 Kontext [pro] image SHA 256: d14a3243cc28d6996fd549722f34d49227f278151c441fa635f955e1c8140414

The numbers at a glance

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

HiDream-O1-Image-1.5

not in the arena

n/a

FLUX.1 Kontext [pro]

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
64

HiDream-O1-Image-1.5

Rank 17 of 74

31

FLUX.1 Kontext [pro]

Rank 57 of 74

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

HiDream-O1-Image-1.5

fairly expensive

n/a

FLUX.1 Kontext [pro]

no API price

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-1.5

Subscription
n/a No plan in Germany names exactly this model.
Via API
$0.08 per image, 100 images $8.

FLUX.1 Kontext [pro]

Subscription
No Black Forest Labs subscription includes this model. Through other providers from ≈ €6.39 a month (ElevenLabs Starter, with limited credits). 23 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 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-Image-1.5FLUX.1 Kontext [pro]
Ratings
Arena ratingfrom votes by users, higher is bettern/an/a
Arena rankn/an/a
Arena votesmore votes, a safer ratingn/an/a
GraduallyBenchour own rating, 0 to 1006431
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition5514
Product photographyMaterials, reflections, and fine details4421
Character and detailAnatomy, clothing, and spatial consistency8355
InfographicNumbers, labels, and visual organization7533
API price
Per imagelower is better$0.08n/a
100 images$8n/a
Profile
ReleasedJune 2026n/a
Weightsopen means: runs locallyproprietaryunknown
Lifecycleno noticeEdit-first model line; API also supports image creation from text, but the main GraduallyBench tasks are not edit-based
AccessAPI, Web appAPI
Parametersnot publishednot published
Largest output2,048 × 2,048 pixelsnot consistently published
Plans in Germanynaming exactly this modeln/a23

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) · FLUX.1 Kontext [pro] 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 FLUX.1 Kontext [pro] from the same arena and category. Older model versions are not used as substitutes.

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