I'm no expert, but it think that it's the pricing on GPT-6 Luna. I'm also guessing that it's been underpriced just for this reason. I also don't think it's all that great, but it's definitely very cheap.

If it's underpriced, it's a loss leader to sell the other models, so it actually can't be too good.

I really put these things through their paces because I use them to review and work with new abstract game rules and models, so they're always flying blind. Luna misses the obvious (and more importantly, the clearly explained) consistently. My second prompt is listing all of the points in its first response, and saying "No, it doesn't work like that." The third prompt is picking out the two or three suggestions it made after correcting itself on all of the original points and saying "That's how it already works." The fourth prompt is "Now that we're done going over the rules, can we start?"

I actually feel like 5.6 Luna seemed better.