January 13, 2026

Flux now supports the WebM container format with Opus codec, providing seamless compatibility with audio sources that output WebM-formatted audio streams.

Flux now accepts WebM containers with Opus codec encoding:

• WebM containers with opus encoding

When sending WebM containerized audio, omit the encoding and sample_rate parameters—Flux will automatically detect these from the container metadata.

WebM is commonly used in web applications and streaming scenarios. This addition makes it easier to integrate Flux with audio sources that natively output WebM format, eliminating the need for format conversion.

For WebM containerized audio:

wss://api.deepgram.com/v2/listen?model=flux-general-en

For detailed information about all supported Flux audio formats, see our Flux documentation.