Lovart adds Seedance 2.5 for native 30-second 4K video
By Steven Van ·
The design agent's Seedance 2.5 integration accepts up to 50 reference assets and renders 4K natively, unlike Runway's same-week 720p version.
Lovart just switched on Seedance 2.5, ByteDance's new flagship video model, inside its AI design agent. The pitch is aggressive: native 30-second 4K output straight from the model, up to 50 reference assets to lock in consistency, and pixel-level control down to every frame. For designers who use Lovart to generate campaign assets, this turns video from a bolt-on into a first-class deliverable next to logos, social graphics, and brand kits.
Native 30-second 4K, no upscaler in the loop
The number that matters here is 4K. Seedance 2.5 renders up to 30 seconds in a single pass, and on Lovart that output comes out of the model at 4K natively rather than being generated small and upscaled after the fact. That distinction shows in fine detail: text on packaging, fabric texture, skin, and hair hold up when the footage lands on a large screen or gets cropped for different placements. Not every platform carrying Seedance 2.5 offers this: Runway's integration, launched the same week, tops out at 720p for this model. If maximum resolution is the priority, Lovart's implementation is currently one of the strongest ways to run it.
50 reference assets turn brand kits into video
Seedance 2.5 accepts up to 50 multimodal references per generation, spanning images, video clips, and audio. In a design-agent context that is more than a consistency trick. You can load a client's product shots, brand colors, an existing character, and previous campaign footage, then generate 30 seconds of video that actually looks like it belongs to that brand. Character identity, environments, and lighting stay stable across the full clip instead of drifting shot to shot, which has been the classic failure mode of AI video in client work.
Pixel-perfect control, down to the frame
Lovart is also leaning on the model's control features. Seedance 2.5 supports precise, region-level adjustments, so you can fix or restyle a specific part of the frame without re-rolling the entire generation. That per-frame control matters for commercial work, where a client note like "change the label on the bottle" used to mean regenerating everything and praying the rest stayed intact.
Video inside a design agent, not a separate tool
Lovart integrated Seedance 2.0 earlier and made it part of its agent workflow, complete with full commercial usage rights on generated video. Seedance 2.5 slots into that same pipeline: brief the agent, let it pull your references, and get campaign-ready motion assets alongside the static ones. ByteDance officially launched Seedance 2.5 on July 31 after previewing it at Volcano Engine's FORCE conference, and its arrival on Lovart on August 7 puts the model in front of a design audience just a week later. For anyone producing ads, product films, or social video on deadlines, the practical takeaway is simple: 30 seconds, 4K, one prompt, your brand's assets as the source of truth.
Sources: Lovart announcement on X, Lovart: Seedance AI video generator, TechNode: ByteDance launches Seedance 2.5