Sites like simonwillison.net/2025/jul/ and channels like https://www.youtube.com/@aiexplained-official also cover new model releases pretty quickly for some "out of the box thinking/reasoning" evaluations.
For me and my usage I can really only tell if I start using the new model for tasks I actually use them for.
My personal benchmark andrew.ginns.uk/merbench has full code and data on GitHub if you want a staring point!
