SKILL.md
Seedance 2.0 (ByteDance)
Seedance 2.0 is the ByteDance Seed team's unified multimodal video+audio model (released Feb 2026, globally available via partner APIs April 2026). It is the preferred premium default for cinematic, trailer, teaser, and motion-led work inside OpenMontage whenever any supporting gateway is configured. OpenMontage wraps four gateways directly (seedance_video → fal.ai, seedance_replicate → Replicate, runway_video with model="seedance_2.0" → Runway, higgsfield_video with model="seedance_2.0" → Higgsfield); BytePlus / Freepik / HeyGen-Video-Agent wrappers are on the roadmap. The scoring engine deduplicates by provider="seedance" so whichever gateway the user has configured wins automatically — agents should pass preferred_provider="seedance" to video_selector (or let the scorer pick) rather than routing to a specific gateway by name.
Why it is the OpenMontage premium default
| Capability | Seedance 2.0 | Notes |
|---|---|---|
| Single-pass native synced audio | Yes | Speech + SFX + ambience generated jointly, not post-sync |
| Multi-shot inside one generation | Yes | Multiple cuts/shots in a single prompt |
| Director-level camera control | Yes | Camera language (dolly, tilt, arc, crane, handheld) honored |
| Lip-sync from quoted dialogue | Yes | Character says: "..." matches mouth shapes |
| Reference conditioning | Up to 9 images + 3 video clips + 3 audio clips | 12-asset multimodal |
| Character identity consistency | Yes | Face/subject stable across shots |
| Max shot duration | 15 s | auto / 4–15 s |
| Resolution ceiling | 1080p on some endpoints (720p default on fal.ai) | Provider-dependent |
| Elo (Artificial Analysis) | 1269 (#1 as of Feb 2026) | Beat Veo 3, Sora 2, Runway Gen-4.5 |
Switch away only for a specific reason: strict budget (use the fast variant or LTX), user-preferred provider (VEO/Sora/Kling), or a stylistic fit that favors another model.