FULL STORY
Hands-On With Gemini 4 Carbon: A Three-Part Test
A blogger got early access to Gemini 4 Carbon in Antigravity and ran 13 coding tasks, from 3D pop-up websites to a tactical FPS, with strong self-correcting performance throughout.
2026-11-11 ~ 2026-11-11 · 3 episodes · 9 posts
Episode 1 · Blogger's Early Gemini 4 Carbon Test: 13 Coding Tasks, Million-Particle Demo Impress (2026-11-11, 4 posts)
Early tester kimmonismus ran 13 coding briefs on Gemini 4 Carbon in Antigravity, including a 1,048,576-particle WebGPU simulation that passed with zero follow-ups. He praised the visual polish and integration but warned the model's green-light self-checks can't be fully trusted.
- Early Gemini 4 Carbon test: 13 coding briefs from 3D to apps impress this reviewer — kimmonismus · 2026-11-11
- Early Gemini 4 Carbon hands-on: 13 coding briefs, a live 1M-particle WebGPU demo — kimmonismus · 2026-11-11
- Carbon test: 1,048,576-particle WebGPU simulation built with zero follow-up prompts — kimmonismus · 2026-11-11
- Gemini 4 Carbon self-tests and fixes its own code, but don't trust green checks — kimmonismus · 2026-11-11
Episode 2 · Gemini 4 Carbon Crafts 3D Pop-Up Book Site and Fictional Instrument Page (2026-11-11, 3 posts)
Midway through the series, Gemini 4 Carbon built a true 3D pop-up book website in three follow-ups, generated a fictional optical instrument product page with 10 detachable, reassemblable parts, and fixed a portfolio site's sculpture and typography with a single prompt.
- Carbon test: full portfolio website built, with 1M-particle WebGPU demo needing zero follow-ups — kimmonismus · 2026-11-11
- Carbon build test: fictional light instrument page and physics marble game in one prompt — kimmonismus · 2026-11-11
- Carbon test: a working 3D pop-up book website after three follow-up prompts — kimmonismus · 2026-11-11
Episode 3 · Carbon Test Series Wraps: Model Builds and Self-Fixes FPS Game and Poster Editor (2026-11-11, 2 posts)
In the final parts of his Gemini 4 Carbon series, kimmonismus had the model build a tactical FPS with AI defenders and original 3D weapons, plus a layer-based poster editor. Carbon tested and fixed its own work, with one follow-up prompt repairing the editor's Undo and export issues.
- Carbon test: poster editor with layers and SVG export, both bugs fixed in one follow-up — kimmonismus · 2026-11-11
- Carbon test finale: tactical FPS with bot AI that tests and repairs its own work — kimmonismus · 2026-11-11