I've had good luck with using them as an alternative to the Google Translate API, but they're entering a pretty crowded space, e.g. Sudowrite, Jasper, Grammarly.
I've even used ChatGPT's zero shot to do some editorial clean-ups with the prompt:
I am going to provide paragraphs of text in quotation marks that may contain spelling errors, grammatical issues, continuity errors, structural problems, etc. I would like you to produce a revised version with all of the above issues fixed. Do not begin until I provide text enclosed in quotation marks.
I've even used ChatGPT's zero shot to do some editorial clean-ups with the prompt:
I am going to provide paragraphs of text in quotation marks that may contain spelling errors, grammatical issues, continuity errors, structural problems, etc. I would like you to produce a revised version with all of the above issues fixed. Do not begin until I provide text enclosed in quotation marks.