0 - https://github.com/airbytehq/airbyte/blob/master/LICENSE
The screenshots of Airbyte and Lume even look nearly the same. It looks like it's just a hosted Airbyte instance with GPT generating the SQL/config.
Smart for an MVP, not much of a moat for the long term, and it's a shame that software licencing is such a blindspot for so many SV startups.
Definitely cases where it's ok to do something similar for an MVP, but I wouldn't touch this product knowing they can't continue to operate it this way (could get shut down at any moment).
I'm a bit surprised someone at YC didn't flag this.
It might be worth differentiating the product further. Right now, looking at screenshots, it looks like a re-skin. I realise there's only so much you can differentiate an ETL service, and that the LLM feature is the main differentiating factor, but I do worry that it's very close right now.