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Seedance Video Detector
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About Seedance Video Detector
The Seedance Video Detector is a free online tool that uses the official ModelArk verification API to determine if a video was produced by the Seedance AI model family. Users can upload a video file or paste a public URL to initiate a check. The tool reports whether official Seedance artifact signals were detected and, when available, provides the model version and resolution. It supports MP4, MOV, and AVI formats up to 100MB and does not require an account or sign-up. The detection scope is limited to Seedance 2.0+ videos and Seedream 5.0+ images generated within roughly the last 30 days. The verification process queries two nodes in parallel—Volcengine and BytePlus—and combines their official results automatically. The tool clarifies that a negative result does not rule out Seedance as a source and that re-encoding can remove detectable signals. Temporary uploads are deleted within 24 hours, and pasted URLs are discarded immediately after verification.
Key features
- Official ModelArk verification API integration
- Parallel node verification (Volcengine and BytePlus)
- Model version and resolution reporting when available
- No sign-up or account required
- Temporary local uploads deleted within 24 hours
- Supports MP4, MOV, and AVI formats up to 100MB
- Public URL submission option
- Detection outcome categorized as official signals detected, no significant signals, or unable to determine
Use cases
- Verify whether a video was generated by the Seedance AI model
- Check the authenticity of AI-generated video content for review purposes
- Compare model versions and resolutions for Seedance-generated artifacts
Pros
- Free to use with no account required
- Uses official ModelArk verification API for detection
- Supports multiple video formats (MP4, MOV, AVI)
- Parallel verification across two nodes (Volcengine and BytePlus)
- No regional selection needed; results are combined automatically
Cons
- Limited to Seedance model family (Seedance 2.0+ videos, Seedream 5.0+ images)
- Detection window restricted to videos generated within ~30 days
- Resolution data only available for artifacts generated on or after July 21, 2026 and queried within 7 days
- Cannot detect other AI models (e.g., Sora, Kling, Runway)
Frequently asked questions about Seedance Video Detector
How do I test if a video was made with Seedance?
Upload the video file (MP4, MOV, or AVI, up to 100MB) or paste its public URL, then run the check. The site submits it to the official ModelArk verification API and displays whether official Seedance artifact signals were detected, along with the model version when available.
Does a negative result prove a video was not made with Seedance?
No. A negative result only means no significant ModelArk artifact signals were detected and does not rule out Seedance as a possible source.
Which formats are supported by the Seedance Video Detector?
The tool supports MP4, MOV, and AVI files up to 100MB in size.
Do I need to choose a verification region for the detection process?
No. The system checks Volcengine and BytePlus in parallel and combines both official results automatically.
Are uploaded videos stored after verification?
Pasted-URL copies are discarded immediately after verification. Local uploads may be retained for up to 24 hours behind an expiring signed preview link before automatic deletion.
Which AI models can the Seedance Video Detector identify?
It detects only the Seedance family covered by the official ModelArk verification API, including Seedance 2.0+ videos and Seedream 5.0+ images. It cannot detect models like Sora, Kling, Runway, or Veo.
