This Google blog post is a distilled version of a Deep Mind blog post:

https://deepmind.google/blog/alphagenome-atlas-a-predictive-...

They are only announcing a cache. The origin for the cache is not discussed.

In particular, the question of whether to trust the predictions is not addressed. For that, I think the citation is from January:

https://www.nature.com/articles/s41586-025-10014-0