Hello HN,
I'm excited to share PageThinker, a writing assistant using the OpenAI API. You can get started for free without signing in: just enter a text you would like to edit and click the suggestions button in the top right.
Unlike existing grammar checkers like Grammarly, PageThinker is optimized not just to improve grammar, but to improve content and rhetoric in a context-specific way. This is one of the strengths LLMs have over traditional ML models, having been trained on so much data in so many different contexts and even different languages.
In addition to the default settings, there is some ability to use custom settings and natural language prompts to improve suggestions. Lots of new features are in the works. I hope you find this useful!