Ten wild Gemini 4 Carbon demos in 24 hours: CUDA meadows, V8 engines, mech stomps
socialwithaayan · x · 2026-11-12
Within 24 hours of Gemini 4 Carbon's release, builders shipped ten striking demos. Highlights:
- A 52k-blade grass meadow written from scratch in CUDA/C++ with no engine or 3D library — even the wind sound synthesized in C++, synced to the gusts
- A detailed V8 engine built with FreeCAD + Blender in 6-7 hours including a demo video
- A Blender 3D test finished in 81 min (186k output tokens, $4.5 API cost), versus 14 min/$1.8 on the older Argon with far worse results
- A Three.js mechanical honeybee in 2h23m with unusually good transitions and detail, plus a rocket scene and a 3D basketball court with no pre-made assets
Community consensus: Carbon is a big step up over Argon on 3D and visual-taste tasks, near or above Opus 5.5 while more efficient. Antigravity's /swarm multi-agent mode is powerful but very token-hungry.
More from coding & agent
- LangChain on eval-driven development: write the eval before you build the agent — udmrzn · 2026-11-12
- Grok Bot as orchestrator: setup pairs Claude Code for engineering and Paper for design — Rasmic · 2026-11-12
- Choosing the Right Codex Model and Effort Level for Research Tasks, Plus an Open-Source Skill — udmrzn · 2026-11-12
- Google releases A2UI 1.0, an open generative UI protocol spanning web, Android, iOS, wearables and TVs — algo_diver · 2026-11-12
- Who reads the queries your agent writes? A diagram of agentic search data flows — adnan_hashmi · 2026-11-12
- Hackathon project lets AI agents spend company money, but only within CFO-approved limits — kleffew94 · 2026-11-12