DeepSeek-V4: a million-token context that agents can actually use
DeepSeek released V4 with two MoE checkpoints, Pro and Flash, both supporting a 1M-token context. Pro has 1.6T total and 49B active parameters; Flash has 284B total and 13B active. The key detail is KV cost: Pro uses 27% of V3.2 single-token FLOPs and 10% of its KV cache; Flash uses 10% and 7%.
Why it matters: DeepSeek-V4 is a flagship Chinese model release with 1M-token context and KV cache at 7%–10% of V3.2. HKR-H/K/R all pass, placing it in the 85–94 same-day band.