| Spec | Value |
|---|---|
| Maker | ByteDance (Seed / Volcano Engine) |
| Announced | 23 June 2026 at Volcano Engine FORCE conference |
| Public launch | 31 July 2026 on Jimeng and Doubao (TechNode listing) |
| Model type | Audio-video joint generation model (ByteDance Seed) |
| Clip length | Up to 30 seconds in one generation, extendable twice (ByteDance Seed) |
| Reference inputs | Up to 50 multimodal references: images, video, audio (Volcano Engine via GIGAZINE) |
| Editing | Local editing of generated videos; white-model control and green-screen editing (ByteDance Seed) |
| Resolution options | 480p, 720p, 1080p on fal (default 720p); 480p draft mode |
| Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16, auto (fal API) |
| API price (fal) | About USD 0.2205 per second at 480p, USD 0.4730 at 720p, USD 1.164 at 1080p, with audio |
Clip length, editing and model type from ByteDance Seed's page; reference count from GIGAZINE, which notes per-type limits were not disclosed; resolution and price from fal.ai. The Decoder and TechNode later report 4K, which the fal schema does not list. · 来源
| Spec | Seedance 2.0 | Seedance 2.5 |
|---|---|---|
| Max clip length (single generation) | 15 s (ByteDance paper) | 30 s (ByteDance Seed) |
| Reference inputs | 9 images, 3 videos, 3 audio (ByteDance paper) | Up to 50 multimodal (GIGAZINE) |
| fal 720p price per second | USD 0.3034 | USD 0.4730 |
Compiled from the sources named in each cell; fal prices read 24 October 2026. · 来源
| Spec | Value |
|---|---|
| Elo (AA-Video-T2V v2.1) | 1158 (95% interval 1143 to 1173) |
| Rank | 5 (rank range 2-8) |
| Samples | 6,477 votes |
| Listed date | Jul 2026 |
| Cost shown by AA | USD 34.12 per minute |
Dreamina Seedance 2.5 row, read from the leaderboard on 24 October 2026. · 来源
Estimate from the version's published specs and reviews, 0-5; scores are only comparable within one criteria year. Scored as shipped (2.5): 720p is the verified ceiling (the 4K in the announcement did not ship), 30 s in one pass, audio-video joint generation, up to 30 images, 10 videos and 10 audio clips per input plus local editing. No speed figure for a 5 s 720p clip (Segmind measured 81-116 s for 10 s). Realism: rank 5 on Artificial Analysis's text-to-video arena (Elo 1158, 6,477 samples), with morphing in fast action. No major outlet reviewed it; the written reviews are a vendor platform, a reseller and a creator sponsored by Artlist. seed.bytedance.com
Morphing and decoherence still show up in fast action sequences, even with well-structured prompts, and no amount of upscaling removes it.
Dialogue written in quotes comes back spoken, lip synced, with ambient sound and effects underneath.
On spoken lines the lip sync matches the mouth, so you don't need a separate voiceover or lip-sync tool.
5 2-8 Dreamina Seedance 2.5 1158 ±15 95% interval 1143 to 1173 6,477 Jul 2026 $34.12 /min
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第一项始终是图钉的来源。总体可信度是各份资料对上方所用开始和结束时间支持程度的加权平均;资料每比最新的一份旧 180 天,权重减半。
Estimated: ByteDance unveiled Seedance 2.5 on 23 June 2026 and promised early July; Atlas Cloud[3] reports a delay to 20 July and a public launch on 31 July via Jimeng and Doubao, a single vendor source.
23 June report: 30-second clips with scene changes and no stitching, up to 50 extra inputs, post-hoc editing, and native 4K for Seedance 2.0.[1]
Vendor timeline: delay announced 9 July, reset to 20 July, launch on 31 July; single source.[1]
Says Seedance 2.5 was released in July 2026 with local editing and a beta 3-minute long-video mode.[1]
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