Grok Imagine Image Qualityvs.HiDream-O1-Image-1.5
Which one is better?
In our own test both are on par. Neither is in the arena. HiDream-O1-Image-1.5 costs 1.6 times as much per image.
Test images
Same task, the first image of each. The task with the biggest difference is preselected.
Result for “Infographic”:HiDream-O1-Image-1.5 slightly ahead
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
Grok Imagine Image Quality: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.050000, generated Aug 14, 2026, 1:34 PM. Source
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
Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6
Grok Imagine Image Quality image SHA 256: b6cccae7af9a70af45a46b9e3264fa6971101e04979f7a0539e889ba6521250a
HiDream-O1-Image-1.5 image SHA 256: 99db95d2f6f00dc7f8872b5562b7577a49065a120d15fc54f687ba624fe4cf6e
Infographic
Grok Imagine Image Quality: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.050000, generated Aug 14, 2026, 1:34 PM. Source
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
Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f
Grok Imagine Image Quality image SHA 256: 03fbeae7859be72584048dfc23fba0651220ab44c707da66c386b77d90cc86f7
HiDream-O1-Image-1.5 image SHA 256: 073d00d82d82a05c20f9117a18e71e21fe0300fd9f4985608be09726b1ee70a8
Product photography
Grok Imagine Image Quality: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.050000, generated Aug 14, 2026, 1:34 PM. Source
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
Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3
Grok Imagine Image Quality image SHA 256: 0ea1e48f20bf61ff10414398b5248b0496c9040b3868c915580efd11d0dbaf11
HiDream-O1-Image-1.5 image SHA 256: 98de28b81a3551441936ce2ebcc0b418e69e9d5cf6ce8b1dc281bc90b05731dc
Typography and layout
Grok Imagine Image Quality: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.050000, generated Aug 14, 2026, 2:05 PM. Source
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
Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419
Grok Imagine Image Quality image SHA 256: 84d88fb03bdbba672fc91268f4c120b17a19e4c9d637425aeca8ed44b2397d9f
HiDream-O1-Image-1.5 image SHA 256: db5acbc9b443ea381bf6294997720fa246cf8a199f91d451aa1d7242fc4a348a
The numbers at a glance
Grok Imagine Image Quality
not in the arena
HiDream-O1-Image-1.5
not in the arena
Grok Imagine Image Quality
Rank 54 of 108
HiDream-O1-Image-1.5
Rank 38 of 108
Grok Imagine Image Quality
fairly cheap
HiDream-O1-Image-1.5
fairly 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.
Grok Imagine Image Quality
- Subscription
- n/a No plan in Germany names exactly this model.
- Via API
- $0.05 per image, 100 images $5.
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.
Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.
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 | Grok Imagine Image Quality | HiDream-O1-Image-1.5 |
|---|---|---|
| Ratings | ||
| Arena ratingfrom votes by users, higher is better | n/a | n/a |
| Arena rank | n/a | n/a |
| Arena votesmore votes, a safer rating | n/a | n/a |
| GraduallyBenchour own rating, 0 to 100 | 60 | 65 |
| GraduallyBench by task | ||
| Typography and layoutLegible text, hierarchy, and composition | 88 | 76 |
| Product photographyMaterials, reflections, and fine details | 37 | 51 |
| Character and detailAnatomy, clothing, and spatial consistency | 56 | 58 |
| InfographicNumbers, labels, and visual organization | 61 | 76 |
| API price | ||
| Per imagelower is better | $0.05 | $0.08 |
| 100 images | $5 | $8 |
| Profile | ||
| Released | April 2026 | June 2026 |
| Weightsopen means: runs locally | proprietary | proprietary |
| Lifecycle | Deprecated: xAI retires the model slug on November 2, 2026; requests are then served by grok-imagine-image-2.0 (quality=low) | no notice |
| Access | API, Web app | API, Web app |
| Parameters | not published | not published |
| Largest output | 2K | 2,048 × 2,048 pixels |
| Plans in Germanynaming exactly this model | n/a | n/a |
API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.
Sources: Grok Imagine Image Quality model source, status source (verified Aug 15, 2026) · HiDream-O1-Image-1.5 model source (verified Sep 22, 2026)
Arena ratings by category
From blind votes on LMArena. “Ahead” means the lead is clear.
Artificial Analysis from Nov 6, 2026
All individual values with sources
| Rating | Grok Imagine Image Quality | HiDream-O1-Image-1.5 | Source |
|---|---|---|---|
| Text to Image Arena | 1,049 | 1,018 | Artificial AnalysisRetrieved Nov 6, 2026 |
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