deepseek-v4.1-flash on Ollama Cloud built a walkable 3D Colosseum in 47 minutes for under a dollar

One prompt to deepseek-v4.1-flash on Ollama Cloud at max effort, then I let it run. It built a procedural Colosseum in Three.js with no downloaded models or textures. A slider switches between 80 AD (painted facade, the velarium awning, crowds in the stands) and today (the broken outer ring, the exposed hypogeum). You can walk it with WASD and collision, fly over it as a drone, or play a cinematic tour. 46 min, 151 model calls, about $0.77 of my Ollama plan. Before saying it was done, it tested itself in Chrome: no console errors, ~144 fps. The agent is AgenC Core, open source. Ollama Cloud is built in: set OLLAMA_API_KEY, run agenc, and pick Ollama Cloud in /model. Local Ollama models work too if you give them a 64k context. https://github.com/tetsuo-ai/agenc-core or get.agenc.ag Full disclosure, I'm one of the devs. Happy to share the prompt: "Build a walkable 3D Colosseum in the browser with Three.js and Vite. All geometry procedural, no downloaded models or textures. Make it look like a postcard: the four-level facade with its arches and columns, the seating tiers, the arena floor, the hypogeum tunnels underneath, and golden-hour light with soft shadows. The hook is a slider that morphs between 80 AD (complete, painted, the velarium awning, crowds in the stands) and today (the broken outer ring, the exposed hypogeum). Controls: WASD walk with collision, mouse look, F for a drone flyover, and a button for a cinematic camera tour. Keep 60 fps on a laptop. Test it in a real browser, fix every console error, then open it for me." submitted by /u/pzarevich [link] [comments]

Source: r/ollama | 2026-10-22

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