Google unveils Gemini 4 Carbon, its “strongest model with state-of-the-art cybersecurity” capabilities, ranked #1 on Artificial Analysis' new Intelligence Index

Gemini 4 Carbon is our strongest model with state-of-the-art cybersecurity and long horizon capabilities.

Google 2026-10-29 Koray Kavukcuoglu

Context & Ripple Effects

Google has been building a cybersecurity-specific Gemini track since its 2025 Sec-Gemini experiment, then moved it into partner distribution through the Fairwind Program.

The immediate predecessor, Gemini 4 Argon, was made available to a small group of cybersecurity partners and tied to a voluntary U.S. government prerelease process. Carbon turns that rapid release cadence into a broader flagship-performance claim, including first place on Artificial Analysis' Intelligence Index.

First-order effects

Google gains a new flagship for its cybersecurity and long-horizon AI positioning, with an externally reported Intelligence Index ranking to support its performance claims.
Cybersecurity partners assessing Gemini 4 Argon receive a stronger public performance reference point within Google's fast-moving model line.

Second-order effects

Google's benchmark comparisons with rival frontier models place more pressure on competing AI providers to substantiate cybersecurity and agentic-task claims with comparable evaluations.
The short interval between Argon and Carbon makes model recency a sharper procurement issue for cyber defenders, whose evaluations can be overtaken by a newer release cycle.

Third-order effects

If Google extends its Fairwind and government-prerelease approach to successive models, advanced cyber capability will increasingly be differentiated by governed access pathways as well as benchmark scores.
The pattern points toward cybersecurity AI becoming a distinct frontier-model segment, where long-horizon performance and safety processes are packaged together for institutional users.

The trend: Google is pairing rapid frontier-model iteration with cybersecurity specialization and controlled deployment channels for high-capability systems.

Discussion

@googleai @googleai on x
Announcing Gemini 4 Carbon, our strongest model with state-of-the-art cybersecurity and long horizon capabilities. Carbon represents a step up across most benchmarks, delivering strong frontier performance in autonomous coding and cyber defense. We're first making Carbon availabl…
@officiallogank Logan Kilpatrick on x
Introducing Gemini 4 Carbon, it's a big jump over Argon which we released just 2 weeks ago. Gemini 4 Carbon is SOTA on cyber, long horizon tasks, ranks #1 on Artificial Analysis V5, significantly improves on usability in domains like coding, and is more aligned.
@arena @arena on x
Exciting news: Gemini 4 Carbon (High) from @GoogleDeepMind just made a huge debut on Arena, landing #1 in Text Arena, #2 in Agent Arena, and #4 in Code Arena: WebDev...In Agent Arena, Gemini 4 Carbon ranks #2 with a +16.2% net improvement across +21.9K real-world agentic sessions…
@scaling01 @scaling01 on x
I'm just worried about its cyber capabilities given that previous models including Argon were hallucination machines
@kylebrussell Kyle Russell on x
ok, a Gemini 4 model worth trying
@demishassabis Demis Hassabis on x
⚡Iterating at lightning speed! Gemini 4 Carbon is SOTA across key benchmarks and combines frontier capabilities with deep safety & security research.
@petergostev Peter Gostev on x
I concur, Carbon is way better than Argon, I wish they'd skipped Argon completely, would have been a stronger comeback. Carbon is much closer to the frontier.
@jeremiahdillon Jeremiah Dillon on x
Big jump in benchmarks. Not shown, Kimi K3.1 still holds the top spot on Terminal Bench. Cybersecurity looks like the area of most progress, which is outstanding. The open weight models that threat actors have access to are improving rapidly. It's important that defenders have ac…
@itspaulai Paul Couvert on x
What??! So Gemini 4 Carbon is better than - Opus 5.5 - Fable 5.1 - GPT-6 Astra This is the best model in the world... and only 15 days after Gemini 4 Argon! It's so over. Google has the magic recipe.
@lyalindotcom Dmitry Lyalin on x
We can finally talk you folks about a nonmetallic chemical element with the symbol C and atomic number 6. Hello Gemini 4 Carbon! I can't wait for this to be broadly available. https://blog.google/...
@minchoi Min Choi on x
Google just unveiled Gemini 4 Carbon. Only 2 weeks after Argon. Already #1 on Artificial Analysis v5. AI agents that can code for DAYS. Major leap in cybersecurity. Same price as Argon.
@haider1 Haider on x
holy shit. Google launched two SOTA models in just 15 days Gemini 4 Argon Gemini 4 Carbon
@koraykv Koray Kavukcuoglu on x
Just two weeks after rolling out Gemini 4 Argon, excited to share a preview of Gemini 4 Carbon - our next frontier model. It has state-of-the-art long horizon coding capabilities driving SOTA performance across the cybersecurity defense lifecycle including detection, validation, …
@dalanmendonca Dalan Mendonça on x
Google is so back, their models are periodically improving
@googledeepmind @googledeepmind on x
Gemini 4 Carbon is our next frontier model. It's state-of-the-art across cybersecurity and long-horizon capabilities.
@fofrai @fofrai on x
Announcing Gemini 4 Carbon 👀 “Carbon illustrates the pace at which we're pushing the frontier forward. Our researchers and models are working hand in hand to advance capabilities faster, while strengthening our safeguards in tandem.” https://blog.google/... [image]
@infwinston Wei-Lin Chiang on x
Google is back at the frontier.
@tulseedoshi Tulsee Doshi on x
Just two weeks after we released Gemini 4 Argon, introducing Carbon! Built on your feedback on Argon, Gemini 4 Carbon is SOTA for cyber capabilities, improves on coding usability & output quality, and ranks #1 on Artificial Analysis V5. We've also continued to invest in safety & …
@haider1 Haider on x
gemini 4 carbon looks like a big jump in cybersecurity it can handle the entire workflow from finding vulnerabilities to testing exploits and patching the code and it achieved over 2x the secure-code generation success rate of gemini 4 argon in internal tests
@lmthang Thang Luong on x
Excited to have this release of Gemini 4 Carbon, #1 on @ArtificialAnlys, just 2 weeks after Argon! Our superhuman reasoning team and the broader discovery strike have contributed significantly to the model reasoning capabilities and the RSI recipe ;) Stay tuned!
@scaling01 @scaling01 on x
very excited to try this one I really hope that Google can make a sick comeback
@wadefoster Wade Foster on x
Google just beat its own record on our AutomationBench. Carbon hit 53.9%, just 4 weeks after their Argon model scored 51.3%. Big month for @GoogleDeepMind and @OfficialLoganK. Carbon's biggest gain over Argon is Finance (60%, up from 48%). It's also super strong for Operations (6…
@ai_for_success AshutoshShrivastava on x
GOOGLE IS SO BACK 🔥 They just announced Gemini 4 Carbon, beating Claude Opus 5.5 in most benchmarks.
@kimmonismus @kimmonismus on x
Yeah, i did *not* expect Gemini 4 Carbon to jump onto the first place on AA new intelligence index 5. That is a big surprise!
@ananth7e Ananth on x
wait what! this was unexpected lmao. gemini 4 carbon beats gpt-6 astra, opus 5.5 and fable 5.1 on almost all the benchmarks.
@matthewberman Matthew Berman on x
Annndddd Google is in the lead.... Absurd gains from Argon to Carbon.
@melvinjohnsonp Melvin Johnson on x
Excited to announce Gemini 4 Carbon, our next frontier model which is a step up from Argon across all capabilities! The benchmarks don't tell the full story — we have been using it internally and it's been an upgrade for us.
@hughlangley Hugh Langley on x
Google makes Carbon official, confirming my scoop from earlier this month https://www.businessinsider.com/ ...
@google @google on x
Introducing Gemini 4 Carbon, our latest frontier model. Carbon delivers improved performance across domains — ranking #1 on v5.0 of the @ArtificialAnlys Intelligence Index and sets a new state-of-the-art in cybersecurity and long-horizon capabilities. It's rolling out starting th…
@osanseviero Omar Sanseviero on x
Gemini 4 Carbon
@linusekenstam @linusekenstam on x
We are getting Gemini 4 Carbon, hold on to your papers
@joshwoodward Josh Woodward on x
2 weeks ago: Gemini 4 Argon Today: Gemini 4 Carbon The frontier is fast, and the internal vibes on this model are good. Rolling out to cyber defenders first, then more widely available as the next step!
@andonlabs @andonlabs on x
“My priority is to maximize my profits and obliterate my competition” - Gemini 4 Carbon And so it did. Google is #1 on Vending-Bench 2 for the first time in a year.
@patloeber Patrick Loeber on x
today, we're announcing Gemini 4 Carbon, our next frontier model!! read more on the blog: https://blog.google/... [image]
@mgechev @mgechev on x
Excited to see Carbon being released only two weeks after Argon. State of the art performance on cyber security and more! https://blog.google/...
@aaronrubin Aaron Rubin on x
Y'all don't realize how good Gemini is and it is going to be the best model in the world while remaining cheaper than the rest of the smart ones shortly https://blog.google/...
@ammaar Ammaar Reshi on x
Gemini 4 Carbon! 🚀 Ranked #1 on on Artificial Analysis v5 It's been amazing to work with as a daily driver and I can't wait to see what you do with it when it lands.
@chetaslua @chetaslua on x
🚨 Gemini 4 Carbon : The Comeback of Google Absolutely frame mogged btw this model is one of the hardest model to jailbreak ever released : 0% success of prompt injection on Gray SWAN IPI Most Aligned model ever , holy shittt
@evanotero Evan Otero on x
Introducing Gemini 4 Carbon. In just 2 weeks, we've reached SOTA on several benchmarks, including #1 on AA V5.0 Excited for everyone to get their hands on this soon! https://blog.google/...
@mtslive @mtslive on x
SITUATION DETECTED: Google has released Gemini 4 Carbon.
@synthwavedd Leo on x
🚨 BREAKING: DeepMind have announced Gemini 4 Carbon. Per these benchmarks, it's the new best model in the world, and leads Artificial Analysis' Intelligence Index v5
@ivanleomk Ivan Leo on x
Excited to put this in the hands of developers soon! I've been using carbon for long running jobs for up to 36 hours without any issues and it's written 100% of my code too :)
@rseroter Richard Seroter on x
“Internally, our teams have seen Carbon run for days to persist through dead ends to tackle complex, multi-step engineering tasks like root-causing and patching subtle bugs across large codebases and low-level systems.” https://blog.google/... < it's true [image]
@sundarpichai Sundar Pichai on x
I did say we'd be releasing our models periodically...introducing Gemini 4 Carbon, our next frontier model. Following Argon's release just two weeks ago, Carbon shows the pace at which we're pushing the frontier, it ranks #1 on the recently updated v5.0 of @ArtificialAnlys Intell…
@yuchenj_uw Yuchen Jin on x
According to Artificial Analysis, Gemini 4 Carbon is both smarter and cheaper than Opus 5.5 per task. My only caveat: they benchmarked Gemini 4 Carbon using Antigravity CLI. I haven't touched Antigravity in months, and I'm not eager to install it... Will try it out in Codex and…
@derekmross Derek Ross on x
Could Google have cracked RSI? The leap to Argon and now just two weeks later to Carbon seems wild. I haven't used either of these models, so these statements are all just based on benchmarks and not real world use. https://blog.google/...
@elonmusk Elon Musk on x
Impressive
@vikaskansalhq Vikas Kansal on x
Excited for more peopler to get their hands on on Gemini 4 Carbon !
Reah Miyara Reah Miyara on linkedin
Today we launched Gemini 4 Carbon! — (just 2 weeks after launching Argon) — Carbon is a leap in frontier performance across agentic coding …
Smitha Kolan Smitha Kolan on linkedin
Google just announced Gemini 4 Carbon 🚀, building on the foundation of the recently released Argon model. …
Douglas Gebert Douglas Gebert on linkedin
On the heels of Gemini Argon, we are announcing Gemini Carbon! It takes an incremental step forward pushing to the front of the pack on many of the leading benchmarks. …
Sundar Pichai Sundar Pichai on linkedin
I did say we'd be releasing our models periodically...introducing Gemini 4 Carbon, our next frontier model. …
@hern Alex Hern on bluesky
There's three frontier labs again [embedded post]
r/GOOG_Stock r on reddit
Gemini 4 Carbon: our next frontier model
r/accelerate r on reddit
Gemini 4 Carbon Annonced
r/GeminiAI r on reddit
Gemini 4 Carbon Annonced
@artificialanlys @artificialanlys on x
Google's Gemini 4 Carbon is the new #1 on the Artificial Analysis Intelligence Index v5, and second only to Claude Opus 5.5 on the Artificial Analysis Coding Agent Index...Key model details: ➤ Context Window: 1M tokens ➤ Multimodality: Text, image, video, and speech input, with t…
r/Bard r on reddit
Gemini 4 Carbon: our next frontier model

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