DeepSeek-V4-Flash-0731 (GA)

The general-availability build of DeepSeek-V4-Flash (284B-class MoE from the V4 family), superseding the April preview. MIT license; ships with a bundled DSpark-style speculative-decoding module and a reasoning_effort dial (low/high/max). 433K HuggingFace downloads in its first days; the old deepseek-chat/reasoner endpoints were retired July 24.

Self-reported (evaluated with an as-yet-unreleased "DeepSeek Harness"): Terminal-Bench 2.1 82.7, DeepSWE 54.4 (the April preview scored 7.3 — version-tag any quoted numbers by build), Toolathlon-Verified 70.3. V4-Pro reached general availability on August 13.