DeepSeek-R1 API定价为什么这么便宜，在目前全量模型部署非常困难的情况下，是否注定亏损？
English triage
Chinese technical note: DeepSeek-R1 API定价Why这么便宜，在目前全量模型deployment非常困难的情况下，是否注定亏损？
方佳瑞 published a Zhihu answer relevant to inference and AI systems, frontier and open model development. The original Chinese excerpt is included below so the feed can preserve the raw source while giving English readers enough context to triage the item.