> Struggle to build a competitive 1T model (Grok 4.5) with massively more compute (Colossus-1 100-250K GPUs, Colossus-2 500K+ GPUs).

This feels like a very American way of designing things - just throw more horse power at it, bigger is better! The rest of the world is usually a bit more resource constrained and efficient at using those resources.

See also Mustangs vs German sports cars, giant American fridges, giant American suburban McMansions vs livable cities etc etc.

You've just got fridge jealousy! ;-)