一句话总结
Google announced Gemini 4 Carbon on October 28, 2026, its strongest model to date, which scored 59 on the v5.0 Artificial Analysis Intelligence Index to rank first globally, ahead of Claude Opus 5.5 (58) and GPT-6 Astra (57), priced at $2 per million input tokens and $10 per million output tokens at launch.
Event Overview
- Time: According to Google's official blog, the model was released on October 28, 2026; Chinese media reported it on October 29 Beijing time.
- Subject: Google DeepMind.
- Event: Google released Gemini 4 Carbon, the second flagship model in the fourth-generation Gemini family, which the company describes as its strongest model yet, with a focus on long-horizon agentic tasks and cybersecurity. It follows Gemini 4 Argon by about two weeks.
Key Information
| Item | Detail |
|---|---|
| Release date | October 28, 2026 |
| Benchmark score | 59 on Artificial Analysis Intelligence Index v5.0, No.1 globally |
| Competitor scores | Claude Opus 5.5 at 58, GPT-6 Astra at 57, GPT-6.1 Sol at 55 |
| Intro pricing | $2 per million input tokens, $10 per million output tokens; cached input at 95% off |
| Access | Initial cohort of vetted cyber defenders via the Fairwind program |
| Context window | Not disclosed for Carbon (predecessor Argon: 1,048,576 tokens) |
Background and Impact
- Cybersecurity results: According to Google, Carbon scored 88.2% on SEC-bench Pro (vulnerability discovery), 54.8% on ExploitGym (exploitation) and 71.0% on CWE-bench (patching).
- Competitive position: According to Sina Tech, Carbon scored 65.2% on Terminal-Bench 4.0, above GPT-6 Astra's 59.1%, while trailing Claude Opus 5.5's 62 on the Coding Agent Index with 59.
- Release cadence: Gemini 4 Argon, released in mid-October 2026, scored 50 on the index; Carbon's score is 9 points higher.