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Head-to-head comparison

FLUX.2 Flex vs. FLUX.2 Pro

Compare arena scores with documented retrieval dates, task-specific image pricing, and verified specifications. Text-to-image generation and image editing are never blended into an artificial overall score.

12

shared result series

4

shared sample prompts

2026-08-16

latest arena retrieval

Change image model selection

Specifications and cost

General specifications and task-specific pricing

A model can have one price for generating new images and another for editing. Prices therefore remain tied to the corresponding arena configuration.

Specifications and pricing for FLUX.2 Flex and FLUX.2 Pro
AttributeFLUX.2 FlexFLUX.2 Pro
ProviderBlack Forest LabsBlack Forest Labs
ReleasedNovember 2025November 2025
AccessAPI, Web appAPI, Web app
LifecycleNo separate lifecycle noticeNo separate lifecycle notice
WeightsProprietaryProprietary
ParametersNot publishedNot published
Maximum output4 Megapixel4 Megapixel
Arena configurationFlexPro
Text-to-image price$60 per 1,000 images$30 per 1,000 images
Editing price$120 per 1,000 images$45 per 1,000 images
Technical sourceModel sourceVerified 2026-08-15Model sourceVerified 2026-08-15
FLUX.2 FlexFLUX.2 Pro
Text to Image ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
FLUX.2 Flex$60
FLUX.2 Pro$30Lower price
Image Editing ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
FLUX.2 Flex$120
FLUX.2 Pro$45Lower price

Independent preference tests

Shared arena benchmarks

Artificial Analysis and Arena derive scores from blind comparisons. Raters see outputs for the same prompt and choose the image they prefer. Separate series cover text rendering, photorealism, portraits, art, commercial design, and image editing. Confidence intervals indicate how certain a measured lead is.

12 shared result series
FLUX.2 FlexFLUX.2 Pro
Text to Image ArenaBlind preference from the same prompt, higher is better
FLUX.2 Flex1,220 EloNo clear arena lead
FLUX.2 Pro1,211 Elo
Image Editing ArenaBlind preference from the same prompt, higher is better
FLUX.2 Flex1,164 Elo
FLUX.2 Pro1,172 EloNo clear arena lead
Arena Text to Image: 3D modelingBlind preference from the same prompt, higher is better
FLUX.2 Flex1,171.967 arena pointsHigher arena score
FLUX.2 Pro1,149.387 arena points
Arena Text to Image: ArtBlind preference from the same prompt, higher is better
FLUX.2 Flex1,155.954 arena points
FLUX.2 Pro1,163.048 arena pointsNo clear arena lead
Arena Text to Image: CartoonBlind preference from the same prompt, higher is better
FLUX.2 Flex1,162.335 arena pointsNo clear arena lead
FLUX.2 Pro1,161.019 arena points
Arena Text to Image: Commercial designBlind preference from the same prompt, higher is better
FLUX.2 Flex1,173.137 arena pointsHigher arena score
FLUX.2 Pro1,156.46 arena points
Arena Text to Image: OverallBlind preference from the same prompt, higher is better
FLUX.2 Flex1,156.466 arena pointsNo clear arena lead
FLUX.2 Pro1,154.786 arena points
Arena Text to Image: PhotorealismBlind preference from the same prompt, higher is better
FLUX.2 Flex1,146.683 arena points
FLUX.2 Pro1,151.499 arena pointsNo clear arena lead
Arena Text to Image: PortraitsBlind preference from the same prompt, higher is better
FLUX.2 Flex1,144.533 arena points
FLUX.2 Pro1,146.513 arena pointsNo clear arena lead
Arena Text to Image: Text renderingBlind preference from the same prompt, higher is better
FLUX.2 Flex1,172.004 arena pointsHigher arena score
FLUX.2 Pro1,156.451 arena points
Arena Image Editing: Multi-image editingBlind preference from the same prompt, higher is better
FLUX.2 Flex1,233.804 arena points
FLUX.2 Pro1,238.237 arena pointsNo clear arena lead
Arena Image Editing: OverallBlind preference from the same prompt, higher is better
FLUX.2 Flex1,225.241 arena points
FLUX.2 Pro1,244.29 arena pointsHigher arena score
Arena benchmark scores for FLUX.2 Flex and FLUX.2 Pro
BenchmarkFLUX.2 FlexFLUX.2 ProSource
Text to Image Arena
1,220 EloNo clear arena lead
Rank 18, 95% confidence interval: ±11, 4,481 ratings
1,211 Elo
Rank 26, 95% confidence interval: ±9, 9,404 ratings
Artificial AnalysisRetrieved 2026-08-15
Image Editing Arena
1,164 Elo
Rank 33, 95% confidence interval: ±7, 7,827 ratings
1,172 EloNo clear arena lead
Rank 29, 95% confidence interval: ±7, 11,347 ratings
Artificial AnalysisRetrieved 2026-08-15
Arena Text to Image: 3D modeling
1,171.967 arena pointsHigher arena score
Rank 19, 95% confidence interval: ±7.03, 15,066 ratings
1,149.387 arena points
Rank 28, 95% confidence interval: ±6.29, 17,241 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Art
1,155.954 arena points
Rank 28, 95% confidence interval: ±6.38, 21,779 ratings
1,163.048 arena pointsNo clear arena lead
Rank 26, 95% confidence interval: ±5.76, 25,069 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Cartoon
1,162.335 arena pointsNo clear arena lead
Rank 26, 95% confidence interval: ±5.15, 55,850 ratings
1,161.019 arena points
Rank 27, 95% confidence interval: ±4.57, 66,010 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Commercial design
1,173.137 arena pointsHigher arena score
Rank 21, 95% confidence interval: ±4.95, 55,246 ratings
1,156.46 arena points
Rank 26, 95% confidence interval: ±4.31, 64,392 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Overall
1,156.466 arena pointsNo clear arena lead
Rank 25, 95% confidence interval: ±3.42, 149,402 ratings
1,154.786 arena points
Rank 26, 95% confidence interval: ±3.06, 175,196 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Photorealism
1,146.683 arena points
Rank 33, 95% confidence interval: ±4.87, 63,801 ratings
1,151.499 arena pointsNo clear arena lead
Rank 30, 95% confidence interval: ±4.29, 74,515 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Portraits
1,144.533 arena points
Rank 34, 95% confidence interval: ±5.82, 33,696 ratings
1,146.513 arena pointsNo clear arena lead
Rank 31, 95% confidence interval: ±5.23, 39,262 ratings
ArenaRetrieved 2026-08-16
Arena Text to Image: Text rendering
1,172.004 arena pointsHigher arena score
Rank 22, 95% confidence interval: ±5.14, 49,969 ratings
1,156.451 arena points
Rank 27, 95% confidence interval: ±4.5, 59,326 ratings
ArenaRetrieved 2026-08-16
Arena Image Editing: Multi-image editing
1,233.804 arena points
Rank 22, 95% confidence interval: ±4.38, 125,392 ratings
1,238.237 arena pointsNo clear arena lead
Rank 20, 95% confidence interval: ±3.8, 171,464 ratings
ArenaRetrieved 2026-08-16
Arena Image Editing: Overall
1,225.241 arena points
Rank 34, 95% confidence interval: ±3.17, 415,923 ratings
1,244.29 arena pointsHigher arena score
Rank 29, 95% confidence interval: ±2.97, 479,952 ratings
ArenaRetrieved 2026-08-16

Visual comparison

Sample images from documented runs

Our images complement preference data, but do not replace it. The prompt, request count, and selection rule match. Provider resolution, quality tier, randomness, and prompt processing remain visible limitations, so this is not a fully controlled laboratory test.

Largely standardized comparison protocol. Both models receive the same archived prompt, 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. These images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

Anatomy, clothing, and spatial consistency

FLUX.2 Flex, Character and detail
FLUX.2 Flex
FLUX.2 Pro, Character and detail
FLUX.2 Pro
Prompt and settings

Create a square cinematic full-body portrait of a fictional bicycle courier waiting under a transparent umbrella at a rainy tram stop in Hamburg at blue hour. She wears a mustard raincoat, navy trousers, red sneakers, a silver helmet, and carries a teal messenger bag. Keep both hands visible, render the bicycle correctly, use realistic wet-street reflections, and include no readable brand names.

FLUX.2 Flex. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-flex, generated Aug 14, 2026, 12:25 PM. Source
FLUX.2 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-pro, generated Aug 14, 2026, 12:30 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

FLUX.2 Flex, image SHA 256: 43b43d5782192d7284de2b824dd1caaaa6b25032d22fc3f8565d438b137089f3

FLUX.2 Flex, request SHA 256: fe5b22589e6505017dc44f4729b1bb60b15820ba3673354d03a69c8b82831953

FLUX.2 Pro, image SHA 256: 9eec1a6900b6031703d2e797b93c2aba6c5f45b4807b560a0bf1e37eac9e20f2

FLUX.2 Pro, request SHA 256: 8c40a10f47e1407d26ab10f5c9d815e533bce798cf0adf5a9c1e6ddfc3f3584e

Infographic

Numbers, labels, and visual organization

FLUX.2 Flex, Infographic
FLUX.2 Flex
FLUX.2 Pro, Infographic
FLUX.2 Pro
Prompt and settings

Create 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.

FLUX.2 Flex. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-flex, generated Aug 14, 2026, 12:25 PM. Source
FLUX.2 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-pro, generated Aug 14, 2026, 12:31 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

FLUX.2 Flex, image SHA 256: 105f60cdeb71a27021ffff1ad3c0ad919df4e5c74ad83b4628fbd64a8d795a09

FLUX.2 Flex, request SHA 256: 11d4ec056332340dc822c82021ef10c6a6aa92de6e44dc931a90b7cbb6f14146

FLUX.2 Pro, image SHA 256: ea47f772cdfa26bf21528ae7e09d245eb7a3be7d3185af15cedd7d21acdfbb09

FLUX.2 Pro, request SHA 256: 9ef85d9cf32f0f9b974eeb0b389c1fbf1403f4e266af0ce98e0ca83da0fe23c1

Product photography

Materials, reflections, and fine details

FLUX.2 Flex, Product photography
FLUX.2 Flex
FLUX.2 Pro, Product photography
FLUX.2 Pro
Prompt and settings

Create 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.

FLUX.2 Flex. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-flex, generated Aug 14, 2026, 12:25 PM. Source
FLUX.2 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-pro, generated Aug 14, 2026, 12:30 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

FLUX.2 Flex, image SHA 256: 9fef39b1500635ddbf78bcb8d3d9a68463ce952aa1fab89d12f6efe023907de7

FLUX.2 Flex, request SHA 256: 1c864c5e5d7f1e7008f15466fd0786f801ae94b17939b4f10de9a61c27766a59

FLUX.2 Pro, image SHA 256: 4d9b922f59b329c5ac3532222c8e340e7fdcb1920ce6f03ad9299f25a6beec43

FLUX.2 Pro, request SHA 256: 96c65fc91b32da0a02970457fbf90c6928e1f7a5b45177fa3ef08f8bc32c9b82

Typography and layout

Legible text, hierarchy, and composition

FLUX.2 Flex, Typography and layout
FLUX.2 Flex
FLUX.2 Pro, Typography and layout
FLUX.2 Pro
Prompt and settings

Create 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.

FLUX.2 Flex. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-flex, generated Aug 14, 2026, 2:01 PM. Source
FLUX.2 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID black-forest-labs/FLUX.2-pro, generated Aug 14, 2026, 2:02 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

FLUX.2 Flex, image SHA 256: 324f87bf898593446a400abb43bd00eee015fa0a1dc160db0f864402fc0b38af

FLUX.2 Flex, request SHA 256: a0aa716f2a302bdfa59820d2e2c27cc56f730e8e2e4d5b64223d29a6979e1475

FLUX.2 Pro, image SHA 256: 5a5d8ccd657d7522bc39fdec4b0aecf198b42c282a5aefde9461239dfe5c0396

FLUX.2 Pro, request SHA 256: 3e170f568fe4b6040423f0df065d9227f586d5da3d911a4251bcc368dfe333c0

How to read this comparison

An Elo score is not a verdict on creativity

A higher arena score means this specific configuration was preferred more often in blind comparisons.

Typography, character consistency, local execution, licensing, and price may matter more to your workload than overall visual appeal.

Prices cover 1,000 images at 1,024 × 1,024 pixels using settings documented by Artificial Analysis. Subscriptions and special rates are excluded.

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