ChatGPT Image Latest (API-Alias)vs.FLUX1.1 [pro] Ultra

Which one is better?

In our own test, ChatGPT Image Latest (API-Alias) leads. Neither is in the arena. Neither has an API price.

Test images

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

ChatGPT Image Latest (API-Alias): Infographic, first image from the fixed test run — ChatGPT Image Latest (API-Alias)83 out of 100

FLUX1.1 [pro] Ultra: Infographic, first image from the fixed test run — FLUX1.1 [pro] Ultra28 out of 100

Result for “Infographic”:ChatGPT Image Latest (API-Alias) 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

ChatGPT Image Latest (API-Alias): openai, 1024x1024, quality high, n=1, generated Nov 2, 2026, 3:07 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

ChatGPT Image Latest (API-Alias) image SHA 256: 138ee96636b4fae17774b98bc6253f8dab595f4763ab90dd069ac6883c3f392e

FLUX1.1 [pro] Ultra image SHA 256: 0b97e1e3f33be2844c06cc18618fea633273ada7e9d6404f9769cdb8403ffbfc

Infographic

ChatGPT Image Latest (API-Alias): openai, 1024x1024, quality high, n=1, generated Nov 2, 2026, 3:07 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

ChatGPT Image Latest (API-Alias) image SHA 256: 3ed35c9539f9e2df404a219548c778a92ac0ee3e39a9a1c7f0bab3ee179165bb

FLUX1.1 [pro] Ultra image SHA 256: 2c7d24fcda220cf5eff966e1b857f11ad0e561f81ac9e4106ef1b4bd71686637

Product photography

ChatGPT Image Latest (API-Alias): openai, 1024x1024, quality high, n=1, generated Nov 2, 2026, 3:06 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

ChatGPT Image Latest (API-Alias) image SHA 256: c500c50a82c3c34b0caefcf73f08258fae3964682dafbee4737ac45855d14ee6

FLUX1.1 [pro] Ultra image SHA 256: 7d497c35126a92de69af61e5721158a10f4e2acf88a8526dcdd0f8a9a571e028

Typography and layout

ChatGPT Image Latest (API-Alias): openai, 1024x1024, quality high, n=1, first output of one technical repeat after a local archive failure; two total submissions; the original attempt output was not retained, generated Nov 2, 2026, 3:06 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

ChatGPT Image Latest (API-Alias) image SHA 256: 503ffd644f74423e8fdf617a2d8984f43f68fd87e287e4a3a94cec89c9666288

FLUX1.1 [pro] Ultra image SHA 256: 0dfeffb6c3489b9ac2e1ae9100793320fa4f5eab779269de7aff3a4b768595f3

The numbers at a glance

Arena ratingfrom votes by users · higher is better

n/a

ChatGPT Image Latest (API-Alias)

not in the arena

n/a

FLUX1.1 [pro] Ultra

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better

ChatGPT Image Latest (API-Alias)

Rank 25 of 108

FLUX1.1 [pro] Ultra

Rank 83 of 108

Price per imagedollars through the API · lower is better

n/a

ChatGPT Image Latest (API-Alias)

no API price

n/a

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.

ChatGPT Image Latest (API-Alias)

Subscription: n/a No plan in Germany names exactly this model.
Via API: No API price known. Access: API.
Weights: unknown.

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 · 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	ChatGPT Image Latest (API-Alias)	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	69	31
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	68	22
Product photographyMaterials, reflections, and fine details	69	28
Character and detailAnatomy, clothing, and spatial consistency	57	45
InfographicNumbers, labels, and visual organization	83	28
API price
Per imagelower is better	n/a	n/a
100 images	n/a	n/a
Profile
Released	n/a	n/a
Weightsopen means: runs locally	unknown	unknown
Lifecycle	Deprecated, non-reproducible rolling alias; API shutdown announced for December 1, 2026	Separate Ultra API route / Ultra mode; no independent checkpoint established
Access	API	API
Parameters	not published	not published
Largest output	not consistently published	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: ChatGPT Image Latest (API-Alias) model source, status source (verified Nov 1, 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 ChatGPT Image Latest (API-Alias) and FLUX1.1 [pro] Ultra from the same arena and category. Older model versions are not used as substitutes.

More comparisons

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