Generate cinematic clips with ByteDance Seedance 2.0 — the preferred premium video model in OpenMontage when a paid gateway is configured. Use when: (1) producing trailers, teasers, hype edits, or premium cinematic clips, (2) needing native synchronized audio (speech, SFX, ambience) in a single pass

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. Provider surfaces Surface Env OpenMontage tool Status Notes fal.ai (primary) FAL KEY seedance video ✅ wrapped Model IDs below. Supports T2V, I2V, reference to video; standard and fast variants. Default in OpenMontage. Replicate REPLICATE API TOKEN seedance replicate ✅ wrapped bytedance/seedance 2.0 + bytedance/seedance 2.0 fast . Standard Replicate prediction API. Runway RUNWAY API KEY runway video (model: seedance 2.0 ) ✅ wrapped Third party Seedance 2.0 model inside Runway. Unlimited/Enterprise plans, non US only . Selected via model param. Higgsfield HIGGSFIELD API KEY + SECRET higgsfield video (model: seedance 2.0 ) ✅ wrapped Seedance 2.0 is the default model on this tool. Emphasis on character identity + long form chaining. HeyGen HEYGEN API KEY heygen video (1.x only) + TODO ⚠️ 1.x only The seedance pro / seedance lite workflow provider strings on HeyGen map to Seedance 1.x. 2.0 access flows through Video Agent / Avatar Shots endpoints — a separate seedance heygen tool is on the roadmap. BytePlus ModelArk / Volcengine BytePlus token not wrapped 🔜 roadmap Direct from ByteDance. Pro ~$0.15 / 5 s, Lite ~$0.010/s. Token based. Freepik Freepik token not wrapped 🔜 roadmap POST /v1/ai/image to video/seedance pro 1080p for 1080p I2V Pollo / PiAPI / Atlas Cloud / AIMLAPI various not wrapped 🔜 roadmap Aggregators resell fal.ai or ByteDance endpoints fal.ai model IDs (used by seedance video ) Pricing (fal.ai, 720p): standard $0.3034 / s (T2V), $0.3024 / s (I2V). Fast $0.2419 / s across endpoints. The fast variant trades some camera/motion fidelity for latency and cost — do not route slow mo, multi shot, or dolly heavy prompts to fast on the first try. Calling Seedance 2.0 inside OpenMontage Always go through video selector with preferred provider="seedance" (or let the scoring engine pick it): Direct call to the provider tool (only when you must bypass the selector): Prompt structure — The Higgsfield Methodology (canonical as of 2026) CRITICAL: Open every prompt with a shot structure declaration. Seedance rewards prompts that declare format upfront before any creative description. This is the single biggest quality lever. Opener templates (copy one verbatim, then extend) For action/combat/multi shot (highest performing format): For single POV continuous shots (orbs, walkthrough): For locked POV reaction scenes: Body structure (after the opener) 1. Environment/location — sensory detail (wet asphalt, sodium lamps, neon bleed, rain particulates, volumetric haze) 2. Character block — with reference tags and identity lock language (see Reference to video below) 3. Enemy/secondary character block — same detail level 4. Beat by beat choreography with TEMPORAL MARKERS: 0–3s: … 3–6s: … 6–10s: … 5. VFX inline in brackets: [VFX: branching white blue electric arcs pulsing along forearms, sparks jumping between fingers] 6. Slow motion markers: write RAMPS TO SLOW MOTION before the impact beat, SNAPS BACK TO REAL TIME on resume 7. Sound design block: either no music, only raw SFX or explicit SFX sequence. Music language stays textural. Combat vocabulary (proven to hit) snaps forward , lunges , sprints , weaves , chambers , drives , pivots , redirects , ducks , slips explodes outward , devastating , raw force , kinetic , overload , compresses , erupts , fractures , ripples Avoid soft verbs: attacks , hits , fights — these read generic and Seedance underdelivers on them Camera behavior — state what it IS and ISN'T doing Seedance misfires when camera intent is ambiguous. Always explicitly negate what you don't want: no cuts (for continuous POV) no zoom (prevents unnatural perspective punch ins) no stabilization (when you want chaotic handheld) no smoothness at all no 3D, no cartoon, no VFX aesthetic — counter intuitive but forces photoreal skin/texture/lighting even when the scene has heavy VFX elements Realism enforcement phrase When the brief has VFX but you want photoreal skin/textures (not plastic Marvel cartoon look), include: Format priority (Higgsfield empirical ordering) Format Best for Pattern Transformation calm → threat → transformation → aftermath 6 numbered shots × 2.5s each @ 15s total Orbs single continuous POV 1 shot × 15s, hyper chaotic handheld Fights combat choreography Beat by beat, clear power mismatch, RAMPS/SNAPS POV locked reaction Continuous, "no cuts no zoom" mantra Animation stylized 3D @image keyframe + timed segments The 2.5 second per shot rhythm appears optimal for multi shot generations. Legacy 8 part template (use only for single simple shots, not action) Seedance 2.0 is unusually literal about camera language, multi shot cuts, and quoted dialogue. Use this 8 part template: Multi shot inside one generation Seedance honors explicit shot lists inside a prompt. Format each shot: Keep subject description consistent across shots for identity stability. Lip sync from quoted dialogue Use Character says: "..." / Character replies: "..." exactly — mouth shapes key off quoted strings. Keep each line under ~6 words; longer lines risk drift on fast clips. Audio cues that work Ambient: distant thunder rolling over mountains , wind through reeds , crackling campfire Diegetic: boots crunching snow , staff planting on stone , wingbeats overhead Music direction (light touch only): low orchestral swell building , taiko drums entering on Shot 3 Do not request complex multi instrument scores — keep music language textural. Reference to video When you have character / product / wardrobe references, use the reference to video endpoint. Seedance 2.0 honors an explicit bracket tagging syntax: Identity anchor phrases that measurably reduce face drift (stack them — redundancy helps): the same character consistent across different scenes / all shots maintain exact appearance from reference image no deformation, no drift, no face morph Do not alter clothing category or primary color Single reference workflow (common in practice): When you only have one photo: Use a clear, front facing portrait with neutral lighting and minimal motion blur; avoid occluded faces (e.g., phones, sunglasses, heavy shadow). Reuse the SAME reference image across all shots — do not generate new refs per shot. Put all shots in ONE prompt under a single [identity lock] block so the model treats them as a coherent sequence. If wardrobe is changing by design (e.g., civilian → costume), describe the costume verbatim on every shot it appears and add Do not alter clothing category or primary color to lock it once generated. Anti drift fallback: If face morphs across frames on first render, drop to a shorter duration (5 6s instead of 10s), tighten the identity lock language, and if you have multiple reference images, cull to the 3 most consistent ones rather than flooding with 9. Parameter guidance Parameter Guidance duration 5 – 8 for hero shots, 10 – 12 for full scenes with multi shot cuts, 4 for quick inserts. auto when unsure. aspect ratio 21:9 for cinematic trailers, 16:9 for broadcast / YouTube, 9:16 for Reels/Shorts/TikTok resolution 720p default. Drop to 480p for cost capped batch previews, not for finals generate audio Keep on unless you have a specific reason to mute — Seedance's moat is synced audio. Strip audio downstream in compose if needed. model variant standard for hero/cinematic shots; fast only for b roll, previews, or when latency is the hard constraint seed Set a seed before iterating variants of a chosen shot — everything else held constant What to avoid Don't Why Cram four plus simultaneous character actions into one shot Motion coherence breaks; split into multi shot Request readable text / logos inside the clip Text rendering is unreliable — handle text in Remotion overlay Mix conflicting lighting ("bright noon" + "neon night") Model picks one and ignores the other Write dialogue longer than ~6 words on fast cut shots Lip sync drift Use fast variant for slow mo, multi shot, or complex camera moves Routinely misses on first try — route to standard Generate music through Seedance audio Texture only is fine; for real scoring use music / pixabay music / elevenlabs and mix in compose Bypass video selector without a reason Loses cost/availability/fallback handling and scoring context Iteration strategy 1. Block out shape with a single duration=5 fast T2V pass at the intended framing. Confirm the composition works. 2. Lock the seed once the composition reads. 3. Upgrade to standard with the same seed, tighten camera and lighting language. 4. Extend and add shots — move to multi shot or longer duration only after a single shot version is clean. 5. Keep a per clip README with prompt + seed + variant for every shot that makes the cut, so the compose stage can re render consistent retakes. Integration notes for OpenMontage pipelines Cinematic pipeline: Seedance 2.0 is the default video model. Use 21:9 for hero, multi shot for montage beats, reference to video when the brief has a visual bible. Animated explainer: Use Seedance 2.0 for the establishing / mood clips only; most shots should stay in Remotion. Don't replace Remotion motion graphics with Seedance — different tool, different job. Screen demo / podcast / clip factory: Seedance is not the right default — these are footage led. Only use for stylized cold opens. Cost discipline: standard at 10 s ≈ $3.03 per clip. Budget accordingly in the proposal stage. fast at 5 s ≈ $1.21 for previews.

seedance-2-0