Opus 5.5 vs Kimi K3.1 Pro vs DeepSeek V4 Flash vs GPT-6.1 Sol. we tested all four with one long prompt: recreate Central Park on an autumn morning in Three.js 0.170. pure code, no imported 3D models or textures. >1 build a scene that holds up as the camera moves through it, including close-ups of Bow Bridge. >2 make the lighting and movement believable, down to translucent leaves and people walking. >3 keep it running at 30+ fps at 1280×720, with reflections and post-processing enabled. same prompt, results side by side. which one came closest to completing the whole task?