Generally Available
DeepSeek-V4 model family
DeepSeek's open-weight V4 line. The live Flash checkpoint as of 18 October 2026 is DeepSeek-V4.1-Flash-1017, served as deepseek-flash. The 10 September card still describes a 552B backbone, 8B active parameters on prefill and 16B on decode, and 196B Engram parameters. Both cards list 763B in Safetensors metadata. V4-Pro-0813, 1.6T total and 49B active on the earlier card, remains a separate API model. Company benchmark scores for 1017 were not independently reproduced in this pass.
