I made a little SQLite manager this morning with Deepseek V4 Flash:
That whole project cost $2.31 on OpenRouter, because I went through lots of iterations to build a pile of little detailed features exactly the way I wanted them, but the original core app cost just a few pennies. I was impressed with how deeply v4 Flash was able to successfully create and edit many versions of features, and how intuitively it understood what I wanted. It's really capable with Flask.
What really shocked me about this little project was that I got a significantly better result from Deepseek v4 Flash, than I did with ChatGPT 🤯