HiDream-O1-Image-1.5vs.Grok Imagine Image 2.0

Which one is better?

In our own test both are on par. HiDream-O1-Image-1.5 has no arena rating yet. HiDream-O1-Image-1.5 costs 1.3 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-1.5: Product photography, first image from the fixed test run — HiDream-O1-Image-1.551 out of 100

Grok Imagine Image 2.0: Product photography, first image from the fixed test run — Grok Imagine Image 2.068 out of 100

Result for “Product photography”:Grok Imagine Image 2.0 ahead

Prompt given to both modelsCreate a square premium product photograph of a brushed titanium wristwatch standing upright on dark green marble. The watch has a cream dial, thin black hands set to 10:10, twelve distinct hour markers, a realistic crown, and a dark brown leather strap. Soft window light from the left, controlled reflections, shallow depth of field, no text, no logo, no extra objects.

What the rating looks at: Materials, reflections, and fine details.

“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

Grok Imagine Image 2.0: openrouter, aspect ratio 1:1, resolution 1K, quality medium, n=1, seed=provider random, actual cost $0.060000, generated Nov 1, 2026, 8:46 AM. Source

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

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

Grok Imagine Image 2.0 image SHA 256: 95148f93193910361a680d5cff305d51bb06d967cb8b35e7ec732bd8501beccc

Infographic

Grok Imagine Image 2.0: openrouter, aspect ratio 1:1, resolution 1K, quality medium, n=1, seed=provider random, actual cost $0.060000, generated Nov 1, 2026, 8:47 AM. Source

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

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

Grok Imagine Image 2.0 image SHA 256: 732d7d3978293b5acd7aba0ec8534056bfa9bd5f6d2024c5eb7275d5bf203ba6

Product photography

Grok Imagine Image 2.0: openrouter, aspect ratio 1:1, resolution 1K, quality medium, n=1, seed=provider random, actual cost $0.060000, generated Nov 1, 2026, 8:45 AM. Source

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

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

Grok Imagine Image 2.0 image SHA 256: 57f2809d2dc95671f5207c2cfc25f629c05be17edfe9bf87ca42d3d33119200e

Typography and layout

Grok Imagine Image 2.0: openrouter, aspect ratio 1:1, resolution 1K, quality medium, n=1, seed=provider random, actual cost $0.060000, generated Nov 1, 2026, 8:44 AM. Source

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

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

Grok Imagine Image 2.0 image SHA 256: 4dae1c4c90d277eed2983780d71f40b4758238ea15a020047c1329fb220e5b51

The numbers at a glance

Arena ratingfrom votes by users · higher is better

n/a

HiDream-O1-Image-1.5

not in the arena

1,317

Grok Imagine Image 2.0

Rank 5 of 21

GraduallyBenchour own rating, 0 to 100 · higher is better

HiDream-O1-Image-1.5

Rank 38 of 108

Grok Imagine Image 2.0

Rank 16 of 108

Price per imagedollars through the API · lower is better

$0.08

HiDream-O1-Image-1.5

fairly expensive

$0.06

Grok Imagine Image 2.0

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.

Grok Imagine Image 2.0

Subscription: No xAI subscription includes this model. Through other providers from ≈ €15.90 a month (Runway Standard, with limited credits). 5 plans in Germany.
Via API: $0.06 per image, 100 images $6.

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-1.5	Grok Imagine Image 2.0
Ratings
Arena ratingfrom votes by users, higher is better	n/a	1,317
Arena rank	n/a	Rank 5 of 21
Arena votesmore votes, a safer rating	n/a	10,830
GraduallyBenchour own rating, 0 to 100	65	73
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	76	71
Product photographyMaterials, reflections, and fine details	51	68
Character and detailAnatomy, clothing, and spatial consistency	58	75
InfographicNumbers, labels, and visual organization	76	77
API price
Per imagelower is better	$0.08	$0.06
100 images	$8	$6
Profile
Released	June 2026	Aug 7, 2026
Weightsopen means: runs locally	proprietary	proprietary
Access	API, Web app	API, Web app
Parameters	not published	not published
Largest output	2,048 × 2,048 pixels	2K
Plans in Germanynaming exactly this model	n/a	5

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) · Grok Imagine Image 2.0 model source (verified Sep 28, 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-1.5Grok Imagine Image 2.0

Text to Image Arena1,0181,166ahead

Artificial Analysis from Nov 6, 2026

All individual values with sources

Rating	HiDream-O1-Image-1.5	Grok Imagine Image 2.0	Source
Text to Image Arena	1,018	1,166	Artificial AnalysisRetrieved Nov 6, 2026

More comparisons

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Predecessor and successor

PredecessorGrok Imagine Image 2.0 vs. Grok Imagine Image QualityPredecessor of Grok Imagine Image 2.0