One architectural lesson from automotive AI that doesn't get discussed enough is that every optimization becomes a safety decision.

In cloud AI, if a model is 20% slower or consumes more memory, you scale infrastructure. In automotive systems, those same trade-offs can affect braking latency, thermal limits, power budgets, and fault recovery. That means model optimization can't happen in isolation it has to be co-designed with hardware, operating systems, and safety engineering.

It's a good reminder that the more mission-critical the application, the less useful it is to think in terms of "better models" and the more important it is to think in terms of better system contracts between AI and the infrastructure around it.