Speech recognition developer here - I hear many people complaining about the accuracy of speech recognition hindering multiple use-cases. I work for a lesser known speech recognition company Speechmatics [1] and accuracy is our top priority. We do have a real-time speech recognition API available, adding it as an alternative speech recognition provider for some of the tools mentioned here might improve the experience for end-users. I've got in touch with our team to see if there is any way we can get involved.

[1] https://www.speechmatics.com/