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Head-to-head comparison

Seedream 4.0 vs. Wan 2.6 Text to Image

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.

1

shared result series

4

shared sample prompts

2026-08-15

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 Seedream 4.0 and Wan 2.6 Text to Image
AttributeSeedream 4.0Wan 2.6 Text to Image
ProviderByteDanceAlibaba
ReleasedSeptember 2025January 2026
AccessAPI, Web appAPI
LifecycleNo separate lifecycle noticeNo separate lifecycle notice
WeightsProprietaryProprietary
ParametersNot publishedNot published
Maximum output4K2K
Arena configurationNo separate configuration namedText to Image
Text-to-image price$30 per 1,000 images$30 per 1,000 images
Editing price$30 per 1,000 imagesNo arena entry
Technical sourceModel sourceVerified 2026-08-15Model sourceVerified 2026-08-15
Seedream 4.0Wan 2.6 Text to Image
Text to Image ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
Seedream 4.0$30Tie
Wan 2.6 Text to Image$30Tie

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.

1 shared result series
Seedream 4.0Wan 2.6 Text to Image
Text to Image ArenaBlind preference from the same prompt, higher is better
Seedream 4.01,221 EloNo clear arena lead
Wan 2.6 Text to Image1,212 Elo
Arena benchmark scores for Seedream 4.0 and Wan 2.6 Text to Image
BenchmarkSeedream 4.0Wan 2.6 Text to ImageSource
Text to Image Arena
1,221 EloNo clear arena lead
Rank 17, 95% confidence interval: ±11, 4,014 ratings
1,212 Elo
Rank 25, 95% confidence interval: ±10, 3,702 ratings
Artificial AnalysisRetrieved 2026-08-15

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

Seedream 4.0, Character and detail
Seedream 4.0
Wan 2.6 Text to Image, Character and detail
Wan 2.6 Text to Image
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.

Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 12:24 PM. Source
Wan 2.6 Text to Image. Provider Together, requested 1280x1280, stored 1024x1024 (Lanczos3 downscale), n=1, seed=provider random, provider default steps, model ID Wan-AI/Wan2.6-image, generated Aug 14, 2026, 12:30 PM. Source

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

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Seedream 4.0, image SHA 256: 81b5aa023fa252472878015448b5ee1cefcbc61844dd6cff98997685d7ab1511

Seedream 4.0, request SHA 256: 84dbdb6b71e48c5944f2d15aa4069a994358e4f10f81fa84cdef4974deee2317

Wan 2.6 Text to Image, image SHA 256: cf49d7136a442f4f1c1ae29af99e917aa83bcbf501fdacfe3a13a3b3e74d7f9a

Wan 2.6 Text to Image, request SHA 256: 10c9f29d46b749448e574d11b560a2c20065d9026f1f52a99f09b23b6299c9c5

Infographic

Numbers, labels, and visual organization

Seedream 4.0, Infographic
Seedream 4.0
Wan 2.6 Text to Image, Infographic
Wan 2.6 Text to Image
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.

Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 12:25 PM. Source
Wan 2.6 Text to Image. Provider Together, requested 1280x1280, stored 1024x1024 (Lanczos3 downscale), n=1, seed=provider random, provider default steps, model ID Wan-AI/Wan2.6-image, generated Aug 14, 2026, 12:30 PM. Source

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

Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Seedream 4.0, image SHA 256: 63dcddf4bf7bb58ea0c67eea96f2c71834158568f29ed3b7f2523b56a91e6526

Seedream 4.0, request SHA 256: 3cdb665a8b6ba558cedce86e937f28b5daa3b3e7a8af57fe9562e13cab212c02

Wan 2.6 Text to Image, image SHA 256: 28eecbf460194ec047237c35415d934929baee9de9938bdff435cd21a4416435

Wan 2.6 Text to Image, request SHA 256: d9e00f8c778897df69e719c5bf9fa73115d87abeb23d63eec50dc2280f0e29a9

Product photography

Materials, reflections, and fine details

Seedream 4.0, Product photography
Seedream 4.0
Wan 2.6 Text to Image, Product photography
Wan 2.6 Text to Image
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.

Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 12:24 PM. Source
Wan 2.6 Text to Image. Provider Together, requested 1280x1280, stored 1024x1024 (Lanczos3 downscale), n=1, seed=provider random, provider default steps, model ID Wan-AI/Wan2.6-image, generated Aug 14, 2026, 12:29 PM. Source

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

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Seedream 4.0, image SHA 256: 1fbad61d03b05e6cd8523e76409983e86c11c74fca2fa1a14d20f07f0d801519

Seedream 4.0, request SHA 256: 55ce222b205d1832a107db6db7f13941b81298037e4bdf6c0d25054a1dc96c7c

Wan 2.6 Text to Image, image SHA 256: e8dbcfd0ce965814d72d676eddf74f723d476c1f78c5928c7b6efbc4eca4765e

Wan 2.6 Text to Image, request SHA 256: d1539f1db265e5a110b20b8585984ef534d0b89f51e83fd0fc51551832b669d1

Typography and layout

Legible text, hierarchy, and composition

Seedream 4.0, Typography and layout
Seedream 4.0
Wan 2.6 Text to Image, Typography and layout
Wan 2.6 Text to Image
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.

Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 2:01 PM. Source
Wan 2.6 Text to Image. Provider Together, requested 1280x1280, stored 1024x1024 (Lanczos3 downscale), n=1, seed=provider random, provider default steps, model ID Wan-AI/Wan2.6-image, generated Aug 14, 2026, 2:01 PM. Source

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

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Seedream 4.0, image SHA 256: 029be40f71522352246ad0de0de2e6c1ed2e45608f59c4f0e1be87b4dc2353c1

Seedream 4.0, request SHA 256: b2353ce00afff8f1dad912b51b418a7ea7da741b587814625f1ca7fc492b02c5

Wan 2.6 Text to Image, image SHA 256: 7e9557478ee297369d7680b31ab3b23a13c984981c0e0c922ef07372999122a7

Wan 2.6 Text to Image, request SHA 256: 2018571c876690a189c5076c520f09d03dd75a18ad6c52550cd51f854c30aa9d

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.