I wonder how much time of this was consumed by manually directing Devin into the right direction, manually fixing and undoing the mess Devin produced and watching Devin burn through $$$. As others said, being completely non-transparent about this burns a bit of trust, but I'd really like to know where we are right now. Since Devin is currently "invite only demos", a more realistic peek into the state of the art can be seen here: https://docs.sweep.dev/blogs/gpt-4-modification
My gut feeling (and limited experience): gpt-4 and other models are not quite there yet, but whoever prepares for the next generation of models now will eventually win big times. Or be replaced by simpler approaches.