Gemini 4 Carbon is the new #1 on the Artificial Analysis Intelligence Index v5
- ID
- 40872
- Status
- summarized
- Published
- 29 Oct 2026, 8:41 PM
- Fetched
- 30 Oct 2026, 2:36 AM
- Provider
- Hacker News
- Category
- dev-community
- Original URL
- https://artificialanalysis.ai/articles/gemini-4-carbon-new-number-1
- Source URL
- https://hnrss.org/best
Summary
- Score
- 6.8
- Created
- 30 Oct 2026, 2:36 AM
- Tags
- Audience
- developersvibe_codersai_ml_learnersai_agent_userssaas_founders
What happened
Artificial Analysis says Gemini 4 Carbon is #1 on Intelligence Index v5 with a score of 59, leading 4 of 9 evaluations including HLE-Diamond and Terminal-Bench-Science. It ranks second to Claude Opus 5.5 on the Coding Agent Index (59 vs 62) and trails on AA-Briefcase, while costing $7.76 per Intelligence Index task versus $10.04 for Claude Opus 5.5 max. Google is rolling it out to selected users only, with a 50% launch discount and no confirmed end date.
Why it matters
If you can access the selected rollout, test Carbon against your own coding-agent and knowledge-work tasks before switching: it is cheaper per task and uses fewer output tokens, but it trails Claude Opus 5.5 on coding-agent benchmarks and its hallucination rate rose from 4% to 11%. If you do not have access, treat the #1 overall score as a benchmark signal, not a reason to re-architect yet.
Discussion angle
Which benchmark matters more for your stack: Carbon's #1 overall intelligence score or Claude Opus 5.5's 3-point coding-agent lead, and would an 11% hallucination rate block adoption?