ByteDance launches Seedance 2.5 flash: 2x faster, 34% cheaper video generation
智东西 · wechat · 2026-11-12
ByteDance released Seedance 2.5 flash, billed as the closest quality to Seedance 2.5 at ¥0.99/sec for 720P text/image-to-video (34% cheaper), with 2x generation speed — a 10-second clip costs about ¥9.9. It supports clips up to 30 seconds, 480P/720P, up to 10 images, 5 videos and 5 audio inputs per run, plus video editing.
Hands-on testing (a 15s parkour cat video): smooth fast cuts between wide/close/tracking shots, consistent characters and scenes; signage text held up in main shots but background characters still glitched in fast-paced frames. Official demos of telescope and earbuds ads plus a circus act show solid multi-shot continuity.
Positioning: flagship Seedance 2.5 (and 4K edition) for high-quality production, flash for high-volume creation. Rolling out to Jimeng, LibTV and others; API hits Volcengine Ark on Nov 15.
Related event: ByteDance Launches Seedance 2.5 Flash: Twice the Speed, 34% Cheaper(5 posts)→
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