FLUX.2 Flexvs.FLUX.1 [dev]

Which one is better?

In our own test, FLUX.2 Flex leads. FLUX.1 [dev] has no arena rating yet. FLUX.1 [dev] has no API price.

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

FLUX.2 Flex: Typography and layout, first image from the fixed test run — FLUX.2 Flex71 out of 100

FLUX.1 [dev]: Typography and layout, first image from the fixed test run — FLUX.1 [dev]7 out of 100

Result for “Typography and layout”:FLUX.2 Flex ahead

Prompt given to both modelsCreate a square editorial poster for an imaginary night train called MONDFALTER. Show the exact German headline MONDFALTER and the exact subline BERLIN NACH LISSABON. Use a restrained midnight-blue and warm-cream palette, one stylized moth, strong Swiss-grid typography, generous negative space, and no additional words or logos.

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

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

FLUX.2 Flex: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:25 PM. Source

FLUX.1 [dev]: fal, requested 1024x1024, n=1, seed=1386633789, estimated cost $0.025000, generated Nov 1, 2026, 9:00 PM. Source

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

FLUX.2 Flex image SHA 256: 43b43d5782192d7284de2b824dd1caaaa6b25032d22fc3f8565d438b137089f3

FLUX.1 [dev] image SHA 256: 8cc425497844ab30bdb5f4b32b613219d01f1f21289d68fc198bb5980a3c6465

Infographic

FLUX.2 Flex: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:25 PM. Source

FLUX.1 [dev]: fal, requested 1024x1024, n=1, seed=1094286267, estimated cost $0.025000, generated Nov 1, 2026, 9:00 PM. Source

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

FLUX.2 Flex image SHA 256: 105f60cdeb71a27021ffff1ad3c0ad919df4e5c74ad83b4628fbd64a8d795a09

FLUX.1 [dev] image SHA 256: 3d5c50031e545a82fe0617e724937b960d6e77c8371795f99fdf8037a2de8e9c

Product photography

FLUX.2 Flex: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:25 PM. Source

FLUX.1 [dev]: fal, requested 1024x1024, n=1, seed=1029917942, estimated cost $0.025000, generated Nov 1, 2026, 8:59 PM. Source

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

FLUX.2 Flex image SHA 256: 9fef39b1500635ddbf78bcb8d3d9a68463ce952aa1fab89d12f6efe023907de7

FLUX.1 [dev] image SHA 256: 2932ee8c5af8a92655a9a9c4ad9ff782d366a51b9dad5553d84fe241d084d5c0

Typography and layout

FLUX.2 Flex: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 2:01 PM. Source

FLUX.1 [dev]: fal, requested 1024x1024, n=1, seed=1184329997, estimated cost $0.025000, generated Nov 1, 2026, 8:59 PM. Source

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

FLUX.2 Flex image SHA 256: 324f87bf898593446a400abb43bd00eee015fa0a1dc160db0f864402fc0b38af

FLUX.1 [dev] image SHA 256: 5a33abcfb19aa0d6d544ad7beb0ce59f51382a9418b5420edcc7aa553d578382

The numbers at a glance

Arena ratingfrom votes by users · higher is better

1,156

FLUX.2 Flex

Rank 17 of 22

n/a

FLUX.1 [dev]

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better

FLUX.2 Flex

Rank 35 of 74

FLUX.1 [dev]

Rank 59 of 74

Price per imagedollars through the API · lower is better

$0.06

FLUX.2 Flex

fairly cheap

n/a

FLUX.1 [dev]

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.

FLUX.2 Flex

Subscription: No Black Forest Labs subscription includes this model. Through other providers from €6.83 a month (Poe Basic, with limited points). 26 plans in Germany.
Via API: $0.06 per image, 100 images $6.

FLUX.1 [dev]

Subscription: No Black Forest Labs subscription includes this model. Through other providers from ≈ €9.59 a month (Krea Basic, with limited credits). 6 plans in Germany.
Via API: No API price known. Access: API, local.
License: Open weights, Older T2I checkpoint under a non-commercial license; hosted BFL API remains documented.

Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.

Arena rating (LMArena) from Oct 28, 2026 · 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.

Kennzahl	FLUX.2 Flex	FLUX.1 [dev]
Ratings
Arena ratingfrom votes by users, higher is better	1,156	n/a
Arena rank	Rank 17 of 22	n/a
Arena votesmore votes, a safer rating	156,876	n/a
GraduallyBenchour own rating, 0 to 100	57	29
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	71	7
Product photographyMaterials, reflections, and fine details	56	40
Character and detailAnatomy, clothing, and spatial consistency	58	40
InfographicNumbers, labels, and visual organization	41	27
API price
Per imagelower is better	$0.06	n/a
100 images	$6	n/a
Profile
Released	November 2025	n/a
Weightsopen means: runs locally	proprietary	openOlder T2I checkpoint under a non-commercial license; hosted BFL API remains documented
Access	API, Web app	API, local
Parameters	not published	12 billion
Largest output	4 Megapixel	not consistently published
Plans in Germanynaming exactly this model	26	6

API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.

Sources: FLUX.2 Flex model source (verified Sep 24, 2026) · FLUX.1 [dev] 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 FLUX.2 Flex and FLUX.1 [dev] from the same arena and category. Older model versions are not used as substitutes.

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More matchups

Compare FLUX.2 Flex and FLUX.1 [dev] with other important image models.

View the complete image model comparison

Same prompt, two images

The numbers at a glance

FLUX.2 Flex

FLUX.1 [dev]

All data side by side

Arena ratings by category

No shared arena score in the stored snapshot

Compare another matchup

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