Project AURIONAI Use-Cases Research & Innovation
video generation

Seedance 2.5

ByteDance media or voice model, noted in passing in the research notes.

ByteDanceByteDanceChinaSeedanceFamily
ByteDance
Levelmodel
Classvideo generation
Parametersnot in the notes
Contextnot in the notes
Released31 Jul 2026
Opennessproprietary
Runs onnot in the notes
Statusactive

Benchmark Results

independent
Artificial Analysis Text-to-Video leaderboardgenerative media
Dreamina Seedance 2.5independent
1,143
8001,0001,200

Score in Elo; the axis starts at 800, as Elo has no zero. Higher is better.

rank 3, AA Text-to-Video leaderboard10 Oct 2026 artificialanalysis.ai
LMArena Text-to-Video Arenagenerative media
720pindependent
1,474 ±9
1,2001,4001,600

Score in Elo; the axis starts at 1,200, as Elo has no zero. Higher is better.

rank 7, LMArena Text-to-Video, updated 21 Sep 202621 Sep 2026 arena.ai
Where this comes from
Every score names who ran it: vendor-reported, maintainer-run or independent. A rank is shown with the population it was ranked in (gap rule 3).

Lineage

successor
Seedance 1.5 Pro to Seedance 2.0: successor, medium confidenceSeedance 2.0 to Seedance 2.5: successor, medium confidenceSeedance 1.5 ProSeedance 1.5 ProByteDanceSeedance 2.0Seedance 2.0ByteDance, Feb 2026Seedance 2.5Seedance 2.5ByteDance, Jul 2026
ByteDanceSeedance 2.0 is the parent (successor)medium confidencenotes
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 3 models. Confidence and evidence are the notes' own.

R&D Topics

Text-to-video foundation modelsproduced by

Identity

Developer
ByteDance
Family
Seedance
Released
31 Jul 2026 sourcessecondary report
Weights published
–
Record checked
10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
not in the notes
Total parameters
– sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
text
Output
video
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
proprietary
Licence
Proprietary sources
Access routes
consumer app, API
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
not in the notes
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Industry Use Cases

No industry use case links this model.

Sources

  1. ByteDance Seed seed.bytedance.com https://seed.bytedance.com/en/
  2. Seedance - Wikipedia en.wikipedia.org https://en.wikipedia.org/wiki/Seedance
  3. AA-Video-T2V v2.0 Leaderboard - Top AI Video Models | Artificial Analysis artificialanalysis.ai https://artificialanalysis.ai/video/leaderboard/text-to-video
  4. Text-to-Video Arena: Best AI Video Generators arena.ai https://arena.ai/leaderboard/text-to-video

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Seedance 2.5", https://aurion.semai.id/models/bytedance-seedance-2-5/, records of October 2026.