# Google announces Gemini 4 Carbon, a frontier model not yet available to users

> Original title: Google announces Gemini 4 Carbon, its latest frontier AI model that you can't use

- Source: Ars Technica · AI
- Published: 2026-10-28T18:47:27.000Z
- Bad Influence: https://badinfluence.news/items/cs1yn0o2uf2esi9msch3kltu9
- Original: https://arstechnica.com/ai/2026/10/google-announces-gemini-4-carbon-its-latest-frontier-ai-model-that-you-cant-use/

## Summary

Google has announced Gemini 4 Carbon, an improvement on Gemini 4 Argon released two weeks earlier. Google says it gains 89 points on WebDev Arena, ranks fourth on that leaderboard, and is twice as likely as Argon to produce code free of vulnerabilities. Google is rolling it out in stages, and the article notes that its lead over GPT-6 Astra, Claude Opus 5.5, and Claude Fable 5.1 is only a few points.