Earlier quoted context omitted.
I didn’t say the model gonna run on one chip of course. 70B needs ~300 chips (only for weights, fp8, just like they do, key value cache not included), 670B would need ~3000 chips, and in racks or not it’s very hard to set up such cluster for one model. There are reasons they still don’t have Llama 405B model.
They deliver pre-built full racks. The "reasons" are most likely because it's not cost-effective as what is effective at this point a tech demo, that first becomes cheap to run if you're actually going to use a decent portion of the capacity for a single model.
During short time when Groq hardware appeared on the market it was costing 20K per card. It's 60 mln (!) per 1 Deepseek model. You need absolutely crazy amount of load to justify those costs, and, most likely, you will need massive amount additional nodes to handle KV cache of those requests.