XDesigner

I asked Grok 3 and Claude 3.7 Sonnet to create the same game. At first, both built something very similar. I slightly preferred Claude’s lighter colors. But when it came down to actual gameplay, Claude 3.7 was a disappointment, it couldn’t fire a single ball properly, show its trajectory, or handle collisions with trees. After 30 minutes of trying I gave up. Grok3, on the other hand, seems to know more about war. On the first try it built a cannon that fired correctly, displayed the trajectory helper, and destroyed trees on impact. It still took me 30 minutes to make the cannon rotate properly, but in the end, I got it working. Cannon game winner: Grok3

None of the top 500 contestants in the 2025 Putnam competition fully solved this problem. Grok 3 (Think) found the solution in ~8 minutes.

🚀 I built one of the first 3D single & multiplayer game with Grok 3! Think 3D movement, raycasted worlds. Here’s the journey

Grok 3 builds a Customer Support AI Agent team just by going through the documentation. Replit lets me run, test and deploy that agent team directly from the browser. All of this in less than 2 mins.