Which is the best AI HARNESS ? Ship benchmark with codex, jcode, pi, opencode, dsh

A benchmark comparing AI coding harnesses—Codex, JCode, Pi, OpenCode, and DSH—using the same prompt and the DeepSeek V4 Flash model produced completely different results on the Ship Simulator Harness benchmark, according to a post by Luigi on 21 Aug 2026.

harness Which is the best AI HARNESS ? Ship benchmark with codex, jcode, pi, opencode, dsh Luigi 21 Aug 2026 Share Same prompt, same LLM model Deepseek V4 Flash, completly different results for the Ship Simulator Harness benchmark.