# Google's Gemini 4 Carbon leads several benchmarks against GPT-6 Astra and Claude Opus 5.5

> Original title: Gemini 4 Carbon, Google's new frontier model, beats GPT-6 Astra and Claude Opus 5.5 on Artificial Analysis.

- Source: Rohan Paul
- Published: 2026-10-28T17:28:52.000Z
- Bad Influence: https://badinfluence.news/items/bw9jvw45krl27ehhgxzxqktlp
- Original: https://x.com/rohanpaul_ai/status/2115496031031058815

## Summary

Rohan Paul relays Google DeepMind's announcement of Gemini 4 Carbon, a new frontier model that Google says is state-of-the-art in cybersecurity and long-horizon work. Carbon scores 88.2% on SEC-bench Pro, 54.8% on ExploitGym, 71.0% on CWE-bench, and 96.2% on GraphWalks, against GPT-6 Astra's 71.8% and Claude Opus 5.5's 66.8% on the long-context test.

## Why it matters

The post gives per-benchmark scores against Gemini 4 Argon, GPT-6 Astra, and Claude Opus 5.5, so readers can compare cybersecurity and long-context results directly.

## Post

Gemini 4 Carbon, Google's new frontier model, beats GPT-6 Astra and Claude Opus 5.5 on Artificial Analysis.

> Arriving 2 weeks after Gemini 4 Argon, Carbon gains most in security: 88.2% on SEC-bench Pro for finding vulnerabilities and 71.0% on CWE-bench for patching.
54.8% on ExploitGym for exploiting them and 71.0% on CWE-bench for patching them.

> Because of that exploit skill, access starts this week with a subset of cyber defenders, then trusted partners through the Fairwind Program, before developers, businesses and consumers get it.

> Google says Carbon can work on engineering problems for days, root-causing subtle bugs across large codebases instead of stalling at dead ends.

> Cost: introductory $2/$10 per 1M input/output tokens, later doubling to $4 and $20.

> On long-context benchmark: on GraphWalks (256K to 1M tokens, BFS F1), Carbon scores 96.2%, against Argon’s 84.2%, GPT-6 Astra’s 71.8% and Claude Opus 5.5’s 66.8%.

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHVu_XDtbgAAgPjS.jpg&mode=thumb&exp=1793404800&sig=596dc72cbffe0a96)

## Quoted post @GoogleDeepMind

> Gemini 4 Carbon is our next frontier model.
> 
> It’s state-of-the-art across cybersecurity and long-horizon capabilities.

https://x.com/GoogleDeepMind/status/2115489356437651654