Old Zhang's AI Learning

Sep 15, 2026 · Artificial Intelligence

DeepSeek-V4.1-Flash Harness Showdown: Claude Code Wins on Quality & Efficiency

Benchmarking DeepSeek-V4.1-Flash across four harnesses on a Space Invaders coding task reveals Claude Code delivers the highest quality with 3× fewer tokens and 4× less time than Pi Agent, while DeepSeek Harness standard mode is fastest but less thorough, and minimal mode fails.