GPAI Ledger › Seedance 2.5 (ByteDance)
Seedance 2.5
Public summary of training content · Article 53(1)(d), Regulation (EU) 2024/1689
Provider: ByteDance — status: Published
ByteDance publishes a public summary of training content for Seedance 2.5 under the EU AI Act; every version this ledger has captured is archived below with its hash and timestamp proof.
AIAL metadata: summary dated 2026-07-31, model released 2026-07-01, eval page
Document versions
Rows may capture the same summary from different sources or formats (the provider's site, AIAL's archived copy); sizes and hashes are comparable only within one URL.
| Capture (UTC) | Source of copy | URL | SHA-256 | Bytes | Notes |
|---|---|---|---|---|---|
| 20260913T115326Z | AIAL archived copy | aial.ie/research/gpai-training-transpare…ce_Seedance_2_5_2026_09_08.pdf | 629ed017d4743e5f… | 248,271 | bytes identical to 20260913T115303Z |
| 20260913T115303Z | provider site | lf3-static.bytednsdoc.com/obj/eden-cn/la…ent%20for%20Seedance%202.5.pdf | 629ed017d4743e5f… | 248,271 |
Third-party evaluation
The AI Accountability Lab scores published summaries against the Commission's template and publishes the result. These are captures of their assessment, archived here because they are revised over time and a score is otherwise unrecoverable once changed. It is AIAL's research judgement, not a legal determination, and not the provider's document. Their assessment is archived here but not served on this site or in the dataset: each capture below proves what was published and when, and points to AIAL for the content. Attribution: aial.ie.
| Capture (UTC) | Source of copy | URL | SHA-256 | Bytes | Notes |
|---|---|---|---|---|---|
| 20260913T115341Z | AIAL evaluation page | aial.ie/research/gpai-training-transparency/evals/bytedance-seedance2.5/ | 2b13371ca3723f7b… | 20,529 | |
| 20260913T115332Z | AIAL evaluation | raw.githubusercontent.com/AIAccountabili…als/bytedance-seedance2.5.yaml | 018fa7609a8fbdad… | 3,300 |
Last checked: 2026-09-13 (re-checked on the daily schedule — see Methodology). Seen a summary we missed? See the contact details.