Seedance 2.5 now available on Vercel AI Gateway

Seedance 2.5 from ByteDance is now available on Vercel AI Gateway. The model generates video clips of up to 30 seconds in a single pass. Vercel is exposing it through the same AI Gateway path developers already use for other models, so teams can call it without standing up a separate ByteDance integration.

Seedance 2.5 is built around long-clip continuity rather than post-production assembly. It holds camera movement and scene continuity inside one generation instead of stitching shorter shots together later. Short clips can be extended while carrying over character appearance, scene setup, and camera motion. A single request can take text, video, image, and audio together, so appearance can come from one asset while motion or style comes from another.

For engineers and builders, that changes the pipeline shape. If you need a multi-second take with consistent subject identity and camera language, you can aim for one generation pass instead of a cut-and-blend workflow. Multimodal inputs in one request also fit product flows where a still, a reference clip, and a prompt all need to constrain the same output without separate preprocessing stages.

On the market side, this puts a ByteDance video model next to other providers already on AI Gateway. The practical edge is access and orchestration: teams already on Vercel can trial Seedance 2.5 under the same gateway controls, billing, and routing they use for chat or image models. That lowers the cost of comparing long-clip continuity and multimodal control against whatever video stack they run today.

The takeaway is to test two things next: whether a 30-second single clip holds subject and camera better than your current multi-shot stitch path, and whether clip extension preserves character, scene, and motion well enough for iterative editing. Watch how quality holds when you mix text, image, video, and audio in one request, and whether gateway latency and cost work for your product’s generation loop.