Looks very similar yes, it is a great UI paradigm for running many prompts. I think of spreadsheets as the OG low-code tool and with just a sprinkle of LLMs, people can do so much more with tools they already know

Totally agree! And to be clear, I'm not intending to discourage you (or anyone else) from working on it. A bunch of smart people separately working and iterating to create the best version of spreadsheet + LLMs makes me a happy user