What languages are supported for Streaming Speech-to-text?
Current Supported Language
AssemblyAI’s Streaming Speech-to-Text is only available in English.
Difference from Async STT
It’s important to note that the language_code parameter mentioned in some AssemblyAI documentation applies to the Async STT (Asynchronous Speech-to-Text) feature, not the Streaming Transcription feature. This can cause confusion when setting up the real-time transcriber. Because Streaming STT only supports English, there is no parameter for specifying a language.
Future Language Support
AssemblyAI plans to add support Streaming Speech-to-text for additional languages in 2025. To stay informed about new features and improvements, including language support updates, you can follow our Changelog.
If you require support for a specific language in Real-Time Transcription, please contact AssemblyAI’s support team. They can pass your request to the Product team for consideration in future updates.