Happy to follow up with you, will write a mail with some of my tasks. For the record, just ran again on OpenRouter and got 0.66 [0]. Screenshots for transparency.
Also reran Jev [1] and Mercuy Decide [2] (which got 0.83) with same input, for reference.
Also, also, used the example via OpenRouter exactly as you did with the only change being my original input (which has my slightly odd tagging system and multiple tags in input though requests a noul as output) and got a 0.47 [3] on investing both times.
If Jev did well but both Mercury Decide and Luna failed, I'd chuck that up to my use/prompting, but Mercury Decide does well here so it seems Luna specific. Will add that I did also try Clef, happy to share that data if anyone wants, but quickly dropped Clef due to pricing vs Jev.
[0] https://imgur.com/a/nAkCZiG
[1] https://imgur.com/a/scIa9nF
[2] https://imgur.com/a/M7Mm1l7
[3] https://gist.github.com/Topfi/d77e503c7d1f6d11fc32d1b2174ec0...