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Seedream 5.0 Provs.Seedream 5.0 Flash

Which one is better?

In our own test both are on par. Seedream 5.0 Flash has no arena rating yet. Seedream 5.0 Flash has no API price.

Test images

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

Seedream 5.0 Pro: Character and detail, first image from the fixed test run
Seedream 5.0 Pro60 out of 100
Seedream 5.0 Flash: Character and detail, first image from the fixed test run
Seedream 5.0 Flash75 out of 100

Result for “Character and detail”:Seedream 5.0 Flash slightly 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

Seedream 5.0 Pro: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.045000, generated Aug 14, 2026, 1:32 PM. Source

Seedream 5.0 Flash: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.018000, generated Nov 1, 2026, 8:29 PM. Source

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

Seedream 5.0 Pro image SHA 256: 06eb1919b5157094ba0ecf0ddcfb921ebbfc937c496cee7627f4717fdd4a7d90

Seedream 5.0 Flash image SHA 256: ffb32d701168dd57095e39252aba67b191c008c7b9393ae22acf1e1b1caba9b9

Infographic

Seedream 5.0 Pro: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.045000, generated Aug 14, 2026, 1:34 PM. Source

Seedream 5.0 Flash: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.018000, generated Nov 1, 2026, 8:30 PM. Source

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

Seedream 5.0 Pro image SHA 256: bec4d5de9deed41729f7e7d93f77450e76ddd0f579b5f0c74244a25e0c03a224

Seedream 5.0 Flash image SHA 256: 0758d1251491a26b5d7736c16597318e5807a92c30db03d9431d8584652aae3e

Product photography

Seedream 5.0 Pro: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.045000, generated Aug 14, 2026, 1:29 PM. Source

Seedream 5.0 Flash: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.018000, generated Nov 1, 2026, 8:29 PM. Source

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

Seedream 5.0 Pro image SHA 256: fd38abd0e7bde742e8e859fbcbc76e4e96f443673445378a42364bc56382ac57

Seedream 5.0 Flash image SHA 256: 3ea7343b12d253b6b0e090054c1e494f5a005632cc263a9b2df4d866ba6b02d0

Typography and layout

Seedream 5.0 Pro: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.045000, generated Aug 14, 2026, 2:05 PM. Source

Seedream 5.0 Flash: openrouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.018000, generated Nov 1, 2026, 8:29 PM. Source

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

Seedream 5.0 Pro image SHA 256: 4e9693d5da3e445b69cc5da6f869caddb88ca5560f010556b168ac8e9aaa70b2

Seedream 5.0 Flash image SHA 256: b9739c9a9ab67183f268f41b7ff62a9151cef9d0c8c168eba332a2b6af057426

The numbers at a glance

Arena ratingfrom votes by users · higher is better
1,251

Seedream 5.0 Pro

Rank 10 of 21

n/a

Seedream 5.0 Flash

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
76

Seedream 5.0 Pro

Rank 6 of 108

79

Seedream 5.0 Flash

Rank 3 of 108

Price per imagedollars through the API · lower is better
$0.09

Seedream 5.0 Pro

expensive

n/a

Seedream 5.0 Flash

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.

Seedream 5.0 Pro

Subscription
No ByteDance subscription includes this model. Through other providers from €6.83 a month (Poe Basic, with limited points). 38 plans in Germany.
Via API
$0.09 per image, 100 images $9.

Seedream 5.0 Flash

Subscription
No ByteDance subscription includes this model. Through other providers from €6.83 a month (Poe Basic, with limited points). 18 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.

Arena rating (LMArena) from Nov 6, 2026 · 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.

KennzahlSeedream 5.0 ProSeedream 5.0 Flash
Ratings
Arena ratingfrom votes by users, higher is better1,251n/a
Arena rankRank 10 of 21n/a
Arena votesmore votes, a safer rating109,680n/a
GraduallyBenchour own rating, 0 to 1007679
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition6877
Product photographyMaterials, reflections, and fine details7777
Character and detailAnatomy, clothing, and spatial consistency6075
InfographicNumbers, labels, and visual organization9986
API price
Per imagelower is better$0.09n/a
100 images$9n/a
Profile
ReleasedJuly 2026n/a
Weightsopen means: runs locallyproprietaryunknown
AccessAPI, Web appAPI
Parametersnot publishednot published
Largest output2Knot consistently published
Plans in Germanynaming exactly this model3818

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

Sources: Seedream 5.0 Pro model source (verified Aug 15, 2026) · Seedream 5.0 Flash model 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 Seedream 5.0 Pro and Seedream 5.0 Flash from the same arena and category. Older model versions are not used as substitutes.

More comparisons

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