Ask HN: What are some successful or useful AI products so far?

Leaving aside clients such as ChatGPT and products that haven’t survived the fad phase of generative AI, what are some actually successful or useful AI products you’ve encountered and how did you use them?

Recently started using replit and I'm pretty impressed. I'm using it to generate a static marketing website for a side project I'm working on and have been pretty happy with the results. It generates simple code that I can easily debug, and also has a pretty complete ecosystem that the AI can fully access, including configuring deployments and debugging server errors. It's the latest thing I've come across that's genuinely impressed me

I probably wouldn't use it full time as an IDE, but I have been using it as a second programmer to push out features, while I work on other corners of the codebase