v2.1.6 stores a corrupt auth token for the on-device model. Here is how to wipe it.

Once the fix is applied, how does it perform?

Adobe Speech to Text v2.16 for Premiere Pro 2020 is a powerful feature that can save time and effort in your video editing workflow. However, issues with this version have caused frustration for some users. By following the steps outlined in this article, you should be able to fix the issues and get back to using Speech to Text efficiently. If you're still experiencing problems, consider using workarounds or alternative solutions to ensure that your transcription needs are met.

Adobe has officially ended support for Speech to Text in Premiere Pro 2020. The cleanest long-term “fix” is to: