It’s good for Nvidia. It’s not as good as it was before. (Assuming DeepSeek’s claims are replicable.)
Nvidia will definitely stay profitable for now though, as long as Deepseek’s breakthroughs are not further improved upon. But if others find additional compression gains, Nvidia won’t recapture its old premium. Its stock hinged on 80% margins and 75% annual growth, Deepseek broke that premise.
Growth might take a short-term dip, but may well be picked up by induced demand. Being able to train your own models "cheaply" will cause a lot more companies and departments want to train their own models on their own data, and cause them to retrain more frequently.
The time of being able to sell H100 clusters for inference might be coming to an end though.