Comment by HarHarVeryFunny

An Astra sized model takes months to train - they are not saying 2 weeks to train from scratch. The only only interpretation of this "2 weeks" claim that is consistent with reality is that they mean 2 weeks of additional training on top of whatever their starting point was, so it's more like this:

|--- N months of base model training -->|--- X months of post-training -->(Astra?)|-- 2 weeks more training (on Navier-Stokes adjacent material, perhaps)--> this "new" model