Grok Imagine Image Qualityvs.FLUX1.1 [pro] Ultra
Which one is better?
In our own test, Grok Imagine Image Quality leads. Neither is in the arena. FLUX1.1 [pro] Ultra has no API price.
Test images
Same task, the first image of each. The task with the biggest difference is preselected.
![FLUX1.1 [pro] Ultra: Typography and layout, first image from the fixed test run](/_astro-img/ca96ede5d1dde604/1024.avif)
Result for “Typography and layout”:Grok Imagine Image Quality ahead
What the rating looks at: Legible text, hierarchy, and composition.
“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
FLUX1.1 [pro] Ultra: fal, aspect ratio 1:1; provider-native resolution, n=1, seed=3831910390, Fal exposes no resolution input; endpoint supports output up to 2K, Prompt enhancement disabled with enhance_prompt=false; default safety tolerance 2, estimated cost $0.060000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:50 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6
Grok Imagine Image Quality image SHA 256: b6cccae7af9a70af45a46b9e3264fa6971101e04979f7a0539e889ba6521250a
FLUX1.1 [pro] Ultra image SHA 256: 0b97e1e3f33be2844c06cc18618fea633273ada7e9d6404f9769cdb8403ffbfc
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
FLUX1.1 [pro] Ultra: fal, aspect ratio 1:1; provider-native resolution, n=1, seed=1664027293, Fal exposes no resolution input; endpoint supports output up to 2K, Prompt enhancement disabled with enhance_prompt=false; default safety tolerance 2, estimated cost $0.060000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:50 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f
Grok Imagine Image Quality image SHA 256: 03fbeae7859be72584048dfc23fba0651220ab44c707da66c386b77d90cc86f7
FLUX1.1 [pro] Ultra image SHA 256: 2c7d24fcda220cf5eff966e1b857f11ad0e561f81ac9e4106ef1b4bd71686637
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
FLUX1.1 [pro] Ultra: fal, aspect ratio 1:1; provider-native resolution, n=1, seed=291934417, Fal exposes no resolution input; endpoint supports output up to 2K, Prompt enhancement disabled with enhance_prompt=false; default safety tolerance 2, estimated cost $0.060000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:49 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3
Grok Imagine Image Quality image SHA 256: 0ea1e48f20bf61ff10414398b5248b0496c9040b3868c915580efd11d0dbaf11
FLUX1.1 [pro] Ultra image SHA 256: 7d497c35126a92de69af61e5721158a10f4e2acf88a8526dcdd0f8a9a571e028
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
FLUX1.1 [pro] Ultra: fal, aspect ratio 1:1; provider-native resolution, n=1, seed=1909595532, Fal exposes no resolution input; endpoint supports output up to 2K, Prompt enhancement disabled with enhance_prompt=false; default safety tolerance 2, estimated cost $0.060000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:49 PM. Source
Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419
Grok Imagine Image Quality image SHA 256: 84d88fb03bdbba672fc91268f4c120b17a19e4c9d637425aeca8ed44b2397d9f
FLUX1.1 [pro] Ultra image SHA 256: 0dfeffb6c3489b9ac2e1ae9100793320fa4f5eab779269de7aff3a4b768595f3
The numbers at a glance
Grok Imagine Image Quality
not in the arena
FLUX1.1 [pro] Ultra
not in the arena
Grok Imagine Image Quality
Rank 54 of 108
FLUX1.1 [pro] Ultra
Rank 83 of 108
Grok Imagine Image Quality
fairly cheap
FLUX1.1 [pro] Ultra
no API price
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.
FLUX1.1 [pro] Ultra
- Subscription
- No Black Forest Labs subscription includes this model. Through other providers from ≈ €9.54 a month (Krea Basic, with limited credits). 12 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 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 | FLUX1.1 [pro] Ultra |
|---|---|---|
| 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 | 31 |
| GraduallyBench by task | ||
| Typography and layoutLegible text, hierarchy, and composition | 88 | 22 |
| Product photographyMaterials, reflections, and fine details | 37 | 28 |
| Character and detailAnatomy, clothing, and spatial consistency | 56 | 45 |
| InfographicNumbers, labels, and visual organization | 61 | 28 |
| API price | ||
| Per imagelower is better | $0.05 | n/a |
| 100 images | $5 | n/a |
| Profile | ||
| Released | April 2026 | n/a |
| Weightsopen means: runs locally | proprietary | unknown |
| Lifecycle | Deprecated: xAI retires the model slug on November 2, 2026; requests are then served by grok-imagine-image-2.0 (quality=low) | Separate Ultra API route / Ultra mode; no independent checkpoint established |
| Access | API, Web app | API |
| Parameters | not published | not published |
| Largest output | 2K | not consistently published |
| Plans in Germanynaming exactly this model | n/a | 12 |
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) · FLUX1.1 [pro] Ultra 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 Grok Imagine Image Quality and FLUX1.1 [pro] Ultra from the same arena and category. Older model versions are not used as substitutes.
More comparisons
Compare Grok Imagine Image Quality and FLUX1.1 [pro] Ultra with the models people compare them with most often.