Every article here is a real test — we run the model ourselves, show the verbatim prompt, the unedited output, and give an honest assessment of what worked and what didn't. No cherry-picking, no cleanup. These are the tests that show you what a model can actually do, not what the press release says it can do.
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.
DeepSeek V4 Pro (Expert Mode) one-shot a 696-line Three.js survival game that loaded sideways. Three follow-up fixes later — camera, food, terrain — the world worked, but you still can't switch to the axe or pick up food by hand. Full prompt, real fix log, and the unresolved bug inside.
Z.ai's 753B open-weight GLM-5.2 generated a complete 3D open-world survival game in a single 1,014-line HTML file on the first try — procedural Perlin noise terrain, three biomes, a 120-second day/night cycle, resource harvesting, and placeable crafting structures. No follow-up prompts, no fixes. Full prompt and live demo inside.
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.
Gemini 3.6 Flash generated a complete first-person 3D voxel survival shooter in a single HTML file via Antigravity. Low effort shipped with inverted mouse controls; high effort fixed it one-shot and added a working gun with recoil animation. Full prompt and breakdown inside.