GLM-5.2 vs Kimi K2.7

Who builds the better game?

One open prompt on two fresh Linux desktops: "build the best browser game you can, your choice." No hints, no fixes from me. GLM-5.2 spent 291 seconds on a maximalist neon survival shooter; Kimi K2.7 shipped a leaner one in 71 — about 4× faster, about half the code. Both landed on a "survive the swarm" void shooter.

Both games side by side — main menus, then live play, then each full screen. Real build times 291s and 71s, both on my Synthetic sub.

GLM-5.2

291s

ASTRAL // Void Protocol · Synthetic · pi · 1,554 LOC

The maximalist. Nearly five minutes and 1,554 lines for a keyboard survival shooter — WASD thrust, 8-way arrow fire, a chromatic-glow title screen with a full control legend and a best-score tracker. It built the whole arcade cabinet.

Kimi K2.7

71s

Neon Void Drifter · Synthetic · pi · 779 LOC

The speedrunner. 71 seconds — ~4× faster, about half the code — for a mouse-aim twin-stick drifter: mouse to aim, WASD to fly, survive the swarm. Lean, focused, and it ran first try.

GLM-5.2's game: ASTRAL // Void Protocol main menu, gradient title and control legend — GLM-5.2 — ASTRAL // Void Protocol, main menu.

Kimi K2.7's game: Neon Void Drifter main menu, glowing title — Kimi K2.7 — Neon Void Drifter, main menu.

Same open prompt, two very different scopes. GLM built the maximalist's game — more time, twice the code, a full menu and control legend. Kimi built the speedrunner's — a lean mouse-aim drifter in a quarter of the time. Both landed on a neon "survive the swarm" shooter; the difference was how much they built to get there.