ByteDance opens Seedance 2.5 developer API to the public
ByteDance
ByteDance opened public developer API access to Seedance 2.5 on August 7, 2026, a week after the model's consumer launch. The API exposes 30-second single-shot video generation with up to 50 multimodal reference inputs (images, video, audio) and 3D camera blockout control.
Why it matters
Moves Seedance 2.5's single-pass 30-second generation and large reference-input ceiling from ByteDance's own apps into third-party tooling via Volcano Engine's Ark platform, intensifying competition with Kling, Wan 3.0, and Veo for developer-facing video APIs.
Importance: 2/5
API-availability milestone for an already-released model; 2 independent media confirmations.