DeepSeek-V4-Flash-0731 Official UpdateProvider report
2026-07-31Based on DeepSeek's July 31, 2026 official update and accompanying comparison image. For public code-agent tasks, DeepSeek-V4-Flash-0731 uses the upcoming DeepSeek Harness in minimal mode with reasoning effort=max, top_p=0.95, and temperature=1.0. DSBench-FullStack and DSBench-Hard are internal DeepSeek benchmarks.