Dylan from AssemblyAI here. Right now we only support English, but are going to be launching more languages very soon. We are also getting closer to launching

Dylan from AssemblyAI here. Right now we only support English, but are going to be launching more languages very soon. We are also getting closer to launching a transfer learning API, so you can train your own acoustic models. This _could_ work for new languages if you had enough data, but we haven't done much testing around this yet. It's something that is definitely on our to do list!