Seaweed
ByteDance Seed class C research
ByteDance Seed's ~7B research video foundation model (20s single-shot at 720p); weights unreleased. Distinct from the shipped Seedance/Dreamina line.
Layer 1 — factual axes
| API & price | no (research; public access is via Seedance/Dreamina) | secondary | source ↗ 2026-07-04 |
|---|---|---|---|
| Max output | 20s · 720p (upsample 2K) | official | source ↗ 2026-07-04 |
| Native audio | no | secondary | source ↗ 2026-07-04 |
| Weights | closed (unreleased) | secondary | source ↗ 2026-07-04 |
| Free tier | no | secondary | source ↗ 2026-07-04 |
Layer 2 — output quality
No independent measure yet. We publish a quality figure only when a named external benchmark ranks this model — we don’t invent one.
ByteDance Seed’s ~7B research video foundation model (20s single-shot at 720p); weights unreleased. Distinct from the shipped Seedance/Dreamina line.