All 3 articles covering Gemini 3.1 Pro.
We gave Gemini 3.1 Pro and GLM-5.2 the exact same tower defense prompt, both at max/high effort. Both one-shot a fully playable game with zero follow-up fixes — but they made opposite architectural choices on the one open question the prompt left them, and GLM-5.2 quietly added a fifth enemy type and a damage-type counter system nobody asked for.
A hands-on Gemini 3.1 Pro benchmark: acting as an AI coding assistant, it generated a 1,421-line Three.js WebGL racing game in one shot — complete with a procedural Web Audio engine synth and canvas minimap that were never in the prompt. Five follow-up fix rounds to reach launch-ready. Full prompt, fix log, and playable demo inside.
A hands-on Gemini 3.1 Pro coding test: high thinking mode one-shot a good-looking 3D roguelike dungeon crawler in Three.js — full HUD, minimap, lighting, weapon view — but it took two more rounds of bug reports to get from 'looks great, can't move' to actually playable. Full prompt and every round inside.