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Firefly Image Model 5vs.Seedream 4.5

Which one is better?

In our own test both are on par. 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.

Firefly Image Model 5: Character and detail, first image from the fixed test run
Firefly Image Model 572 out of 100
Seedream 4.5: Character and detail, first image from the fixed test run
Seedream 4.537 out of 100

Result for “Character and detail”:Firefly Image Model 5 ahead

Prompt given to both modelsCreate 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.

What the rating looks at: Anatomy, clothing, and spatial consistency.

“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

Firefly Image Model 5: manual, one request, first output, Firefly Image 5, 1:1, 1K, no reference image, no negative prompt, 10 Adobe credits, generated Aug 16, 2026, 12:14 PM. Source

Seedream 4.5: fal, requested native 2048x2048 square, n=1, seed=607017308, estimated cost $0.040000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:50 PM. Source

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

Firefly Image Model 5 image SHA 256: 6a8e97db33824727599cf62339ff714cfb836a96a5f078010bb7760d7372f3d4

Seedream 4.5 image SHA 256: 614d5b810be9f7cc54c999fb930e5bb1a7a5b58f7211a3b71aa92e83a360cf78

Infographic

Firefly Image Model 5: manual, one request, first output, Firefly Image 5, 1:1, 1K, no reference image, no negative prompt, 10 Adobe credits, generated Aug 16, 2026, 12:14 PM. Source

Seedream 4.5: fal, requested native 2048x2048 square, n=1, seed=467481828, estimated cost $0.040000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:51 PM. Source

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

Firefly Image Model 5 image SHA 256: 8fa6d9b40c417847061ec33d789ad5bf91f1e85da586515c6226ce6db825d1ba

Seedream 4.5 image SHA 256: ec1e2be1080670edf050cff00a094ff471c1b480a11a3922cf8c25f0ef0f6a5e

Product photography

Firefly Image Model 5: manual, one request, first output, Firefly Image 5, 1:1, 1K, no reference image, no negative prompt, 10 Adobe credits, generated Aug 16, 2026, 12:14 PM. Source

Seedream 4.5: fal, requested native 2048x2048 square, n=1, seed=1880157282, estimated cost $0.040000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:50 PM. Source

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

Firefly Image Model 5 image SHA 256: c36dab49ebe40473fa9e9a61b2b02fe36c4cd3536cbb6aac1d0ad0f8944d8bfc

Seedream 4.5 image SHA 256: 48a36dede8c680fa8e2231ac33a95b1417dcded96ad753c98218cc78ed96a65b

Typography and layout

Firefly Image Model 5: manual, one request, first output, Firefly Image 5, 1:1, 1K, no reference image, no negative prompt, 10 Adobe credits, generated Aug 16, 2026, 12:14 PM. Source

Seedream 4.5: fal, requested native 2048x2048 square, n=1, seed=775629027, estimated cost $0.040000, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 2, 2026, 2:50 PM. Source

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

Firefly Image Model 5 image SHA 256: cf8a921a221de5e456df2311482fc999303f5438270fb1a77c1be2dd3d9afc0b

Seedream 4.5 image SHA 256: 62d4e5b0b3c9ca5a55952dc2c5aca878ed687c76f302ad632136bd3e6bee3872

The numbers at a glance

Arena ratingfrom votes by users · higher is better
n/a

Firefly Image Model 5

not in the arena

n/a

Seedream 4.5

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
55

Firefly Image Model 5

Rank 58 of 108

48

Seedream 4.5

Rank 64 of 108

Price per imagedollars through the API · lower is better
n/a

Firefly Image Model 5

no API price

n/a

Seedream 4.5

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.

Firefly Image Model 5

Subscription
n/a No plan in Germany names exactly this model.
Via API
No API price known. Access: API, Web app.

Seedream 4.5

Subscription
No ByteDance / Volcengine subscription includes this model. Through other providers from ≈ €6.36 a month (ElevenLabs Starter, with limited credits). 39 plans in Germany.
Via API
No API price known. Access: API, Web app.
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.

KennzahlFirefly Image Model 5Seedream 4.5
Ratings
Arena ratingfrom votes by users, higher is bettern/an/a
Arena rankn/an/a
Arena votesmore votes, a safer ratingn/an/a
GraduallyBenchour own rating, 0 to 1005548
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition8684
Product photographyMaterials, reflections, and fine details4644
Character and detailAnatomy, clothing, and spatial consistency7237
InfographicNumbers, labels, and visual organization1527
API price
Per imagelower is bettern/an/a
100 imagesn/an/a
Profile
ReleasedOct 28, 2025n/a
Weightsopen means: runs locallyproprietaryunknown
LifecycleGenerally available since March 19, 2026Still-listed T2I/I2I model ID; Ark marks it as pending shutdown without giving a date in the reviewed source
AccessAPI, Web appAPI, Web app
Parametersnot publishednot published
Largest output4 Megapixelnot consistently published
Plans in Germanynaming exactly this modeln/a39

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

Sources: Firefly Image Model 5 model source, status source (verified Aug 15, 2026) · Seedream 4.5 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 Firefly Image Model 5 and Seedream 4.5 from the same arena and category. Older model versions are not used as substitutes.

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