Runway's Seedance 2.0 Video Model Gains Native 4K Output Across Text-, Image- and Video-to-Video Endpoints
Runway API Changelog·low signal
On June 24 Runway added 4K support to its Seedance 2.0 (seedance2) model via the API, exposing six new 3840-wide aspect-ratio values (including 21:9, 16:9, 4:3 and 1:1) across text-to-video, image-to-video and video-to-video endpoints. It follows the June 5 launch of Seedance 2.0 Fast and the June 2 Aleph 2.0 timestamped-keyframe editing model. The move pushes API-accessible generative video toward production-resolution output for builders integrating clip generation into pipelines.