DeepSeek V4.1 Flash vs Opus 5.5 vs GPT-6.1 Sol on a Three.js 3D jet engine build
On the same Three.js jet-engine prompt, DeepSeek V4.1 Flash 1017 took ~1h30m with strong detail but huge token burn, Opus 5.5 1h19m, and GPT-6.1 Sol 26m57s.
DeepSeek V4.1 Flash 1017 vs Claude Opus 5.5 vs GPT-6.1 Sol. Same prompt, same task: build an interactive 3D jet engine cutaway in Three.js. ✈️ • DeepSeek V4.1 Flash 1017: ~1h 30m • Claude Opus 5.5: 1h 19m 33s • GPT-6.1 Sol: 26m 57s DeepSeek genuinely surprised me. Detailed internals, a great cutaway animation, and a polished presentation. But it burns through an insane amount of tokens. Opus delivered impressive visuals, lighting, and engine effects. Sol was by far the fastest, with a clean design, though less visually ambitious. DeepSeek is seriously impressive here. Didn't expect it to hold up this well