DeepSeek-V3 is a specific open-source Mixture-of-Experts language model release from DeepSeek, with 671B total parameters, 37B activated parameters per token, trained on 14.8T tokens, and released with model weights, technical report, chat/API access, and local inference guidance.
Pricing
First-party DeepSeek-V3 announcement states these rates apply 'From Feb 8 onwards.' Current DeepSeek Models & Pricing page says billing is per 1M input/output tokens and currently lists newer V4 models, not V3.
DeepSeek's first-party DeepSeek-V3 announcement explicitly lists API pricing from Feb. 8 onward at $0.27 per 1M input tokens for cache misses, $0.07 per 1M cached input tokens, and $1.10 per 1M output tokens. The current first-party Models & Pricing page confirms DeepSeek prices are billed per 1M tokens but currently lists newer V4 models rather than DeepSeek-V3, so confidence is medium for current availability while the V3 numeric pricing is directly cited.