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BYTEDANCE'S SEEANCE 2.5 GENERATES 30-SECOND AI VIDEOS WITH AUDIO

INDUSTRY DESK1 MIN READ
SAT, AUG 1, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

ByteDance released Seedance 2.5, an AI video model that produces synchronized video and audio in a single generation. The system generates clips up to 30 seconds long—triple the length of Google's Gemini Omni Flash.

Seedance 2.5 accepts multiple input formats including images, videos, and audio files as reference material. Users can feed dozens of assets into the model to guide the output, streamlining creative workflows. The unified video-and-audio generation addresses a common production bottleneck. Marketing and advertising teams currently piece together short clips sequentially—a process Seedance 2.5 consolidates into single-pass generation. The 30-second output window represents a significant leap. Most competing models produce shorter clips, making Seedance 2.5 more suitable for social media content, commercials, and short-form video production. ByteDANCE positions the tool for professional ad teams seeking faster content turnaround. The multimodal input capability allows creators to maintain consistency with existing brand assets while leveraging AI generation for efficiency.

■ SOURCES

The Decoder

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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