They say it's built on Luna, which costs $0.10M/in, vs Jev which only costs $0.04M/in, which is interesting ...

Based on how fast they rushed out a competitor (and the anti-Jev astroturfing), it seems that Jev is much more of a threat to OpenAI than they want to admit. Other than coding it seems the other high volume use case for LLMs is business automation, and for a lot of that all you need/want is indeed just a decision/classifier model.