Harness comparisonAI Coding
Nesting dolls in Three.js, Codex vs DeepSeek Harness — OpenAI Codex (GPT-6.1 Sol) vs DeepSeek Harness (DeepSeek V4.1 Flash 1017)
Same Three.js task: four nesting dolls open, line up from largest to smallest, then nest back together. GPT-6.1 Sol (xhigh) in Codex on the left, DeepSeek V4.1 Flash 1017 in DeepSeek Harness on the right.
Each side pairs a coding harness with its own model, so harness and model differences are mixed. More OpenAI Codex vs DeepSeek Harness. All harness comparisons.
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- Nesting dolls in Three.js, Codex vs DeepSeek Harness
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- 3D & Shaders
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