Since you did not compare them, I now checked myself, and it looks like Luna benchmarks about the same as DeepSeek V4 Flash 0731.
The cost per task was $0.03 with DeepSeek, $0.05 with Luna. $1.23 for Sol.
Tokens per second 132, 202, 70 respectively.
A couple of very talented friends were uttering curses upon the entire bloodline of whoever convinced them to try letting sol xhigh do serious work. Deepseek cleaned it up for a fraction of $20.