Check whether audio is watermarked
Public detector. Anyone can upload a clip at cartesia.ai/watermark-detector to check for a Cartesia watermark. Supports FLAC, M4A, MP3, MP4, MPEG, MPGA, OGA, OGG, WAV and WebM files between 3 seconds and 5 minutes long, up to 32 MB. Detection API (paid plans). Check audio programmatically, for example to screen uploads or verify clips.detected: true means the clip very likely contains a Cartesia watermark. False positives are rare but possible. detected: false means no Cartesia watermark was found. The audio could still be AI-generated by another provider, or heavily edited.
FAQs
Is watermarking on by default?
Is watermarking on by default?
Yes. It’s applied automatically to all audio generated by Sonic-3.6 or newer models.
Can I configure it per API key or organization?
Can I configure it per API key or organization?
No. Watermarking is always on and can’t be disabled at any level.
Does it work with streaming?
Does it work with streaming?
Yes. Watermarking covers every generation endpoint: WebSocket, SSE, and Bytes.
Does the watermark survive compression or resampling?
Does the watermark survive compression or resampling?
Yes. It’s robust to common audio transformations, including compression, resampling, and conversion.
How do I detect a watermark?
How do I detect a watermark?
Anyone can use the public detector. Customers on paid plans can also use the Detection API.
Does the watermark identify my account or organization?
Does the watermark identify my account or organization?
Not yet. Today, the watermark identifies audio as Cartesia-generated. Per-customer attribution for paid plans is planned for a future release.
Does watermarking affect latency or audio quality?
Does watermarking affect latency or audio quality?
No. There’s no perceptible impact on either.