Some models here are called by their IDs that date them on Amazon Bedrock, for example, the Haiku 4.5 ID is 20251001. Other models sometimes go through a provider's live endpoint, and those can change behind the same name. So drift is possible for some models and unlikely for others. A daily reset would be too noisy and costly (I'm still in school lol). Most models play only a handful of games a day, and Codenames has a lot of board luck through RNG. Potentially, maybe a weekly recalibration is an interesting research idea though.

Thank you, cheekygeeky, for your numerous interesting questions. I'll try to ponder them to improve my site. If you're interested in testing the models for yourself, you can click on the link in my title or visit wordspies.com to get a feel for how different models perform when you play with and against them!