Google announces Gemini 4 Carbon with ‘significant gains across coding and agentic tasks’
Abner Li | Oct 28 2026 - 10:08 am PT 1 Comment
Following the launch of Argon two weeks ago, Google today announced Gemini 4 Carbon as its next frontier model.
There are “significant gains” in coding, agentic tasks, and cybersecurity defense (finding vulnerabilities). Notably, “Carbon ranks #1 on the recently updated v5.0 of Artificial Analysis Intelligence Index at 59.”
Related : Google adding more Connected Apps to Gemini & Search with new dev platform
Google says this fast release is due to its researchers and models “working hand in hand to advance capabilities faster.”
Based on user feedback following the last launch, Google worked to improve Carbon across “coding, agentic, and scientific tasks, as well as full-stack web development and multimodal understanding.”
“With improved quality of output and artifacts in web development, Carbon jumps +89 elo points to land at #4 (1769) on WebDev Arena .”
For cybersecurity: “firm lead in SEC-bench Pro (88.2%) for finding vulnerabilities, ExploitGym (54.8%) for exploitation, and CWE-bench (71.0%) for patching.”
“On internal benchmarks, Carbon drives a strong uplift in generating secure code, and in live coding environments with our own teams it shows reduced misalignment and fabrication rates.”
On the safety front, Google worked to improve alignment and trained Carbon to “respond to complex or high-pressure tasks in the right way.”
Greater transparency and honesty : In our internal testing, Carbon cuts unsupported claims by approximately 2x over Argon. It puts methodological caveats directly into the deliverable or withholds blocked actions with a clear list of what remains required, rather than fabricating or hedging around missing evidence.
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