TikTok 更新 Symphony AI 视频广告工具，接入最新模型并延长生成时长

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The company’s Symphony platform now has access to the latest model from Dreamina Seedance, offering brands expanded creation options.

Published Nov. 9, 2026

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TikTok has added some new elements to its artificial intelligence-powered Symphony ad creation tools, including advanced video generation using the latest models, an updated Symphony API and broader access to AI usage tokens.

First, TikTok added more capacity to generate video ads using the latest Dreamina Seedance AI models within its Symphony Agent tool.

As shown in this example sequence, TikTok’s Symphony now has access to the updated visual generation capacity of Dreamina Seedance to generate better-looking ads based on expanded prompts, with users able to integrate example videos and ads.

TikTok said advertisers will now be able to upload up to 50 multimodal references (images, videos, and audio), up from 9 previously, while the updated Seedance models will now be able to generate up to 30 seconds of video for each prompt, up from a previous 15-second maximum.

TikTok said the latest Dreamina Seedance model is also able to generate sharper, more realistic imagery and offer better lighting and character consistency across video frames.

The viability of AI-generated video on TikTok will vary, but it could be worth experimenting with these new video generation tools, based on expanded creative inputs, to see what the system can generate.

TikTok also launched an updated Symphony API, which will enable advertisers to generate content using Symphony’s tools within their own creative management tools.

The company also expanded access to its BytePlus tokens, which will enable more use of its Symphony tools for visual generation.

“Starting November 9, advertisers outside North America can purchase BytePlus tokens to access Dreamina Seedance AI models through Symphony, enabling faster video generation, higher-quality output, and more formats,” TikTok said.

BytePlus is the enterprise technology arm of TikTok parent company ByteDance, and it manages all of the company’s AI tools and systems.

These updates could provide additional considerations for advertisers heading into peak shopping season.