Show HN: Letterflow: GPT4 Powered Newsletter Generator

Letterflow is a GPT-4 powered copywriting tool made specifically for newsletter generation from direct sources. I think Letterflow can help newsletter editors save time on the writing by generating an initial draft that they can easily build from. Letterflow allows you to spend more time on finding relevant, exciting new sources of information for your newsletter subscribers.

Here's how I built Letterflow: I am using the Diffbot api to fetch the content from sources that users input in the sources textarea. I then feed this into the GPT4-api with a prompt based on the specifics that the user specified.

It is very slow right now, but I plan to change that very soon by: - Migrating to LangChain - Parallelizing the GPT-4 api requests - Realtime streaming GPT-4 api response

If there is interest, I would be more than happy to opensource the project. Many new things coming soon!

I would extremely appreciate it if anyone could try Letterflow out. There is NO SIGNUP at all, and it is completely free of course.

If you have any feedback, feel free to reach out at jmiran15@jhu.edu or leave it here.

Thanks!!