As of May 28, 2025, this name is no longer defined by a Web Platform specification
Definition
Web Speech API defines SpeechRecognitionMode
enum SpeechRecognitionMode {
"ondevice-preferred", // On-device speech recognition if available, otherwise use Cloud speech recognition as a fallback.
"ondevice-only", // On-device speech recognition only. Returns an error if on-device speech recognition is not available.
"cloud-only", // Cloud speech recognition only.
};