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Gemini 4 Carbon
Discover what Gemini 4 Carbon can do: benchmark-leading AI for long coding marathons and frontline security work, plus rollout and pricing details.
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How Gemini 4 Carbon Redefines Frontier AI Work
Gemini 4 Carbon is tuned for extended autonomous engineering and defensive security at the same time, matching record scores with a cautious, safety-led release.
- Multi-Day Autonomous Engineering RunsGemini 4 Carbon was trained for tougher, multi-stage engineering challenges. Early internal teams watched it work for days, pushing past dead ends to trace and repair elusive defects across huge codebases and low-level systems.
- Security Coverage from Detection to PatchIt carries the whole defensive cycle — spotting, validating and fixing flaws: 88.2% on SEC-bench Pro for real vulnerabilities, 54.8% on ExploitGym for exploitation, and 71.0% on CWE-bench for root-cause patching.
- Two Weeks from Argon to CarbonArriving just a fortnight after Gemini 4 Argon, Gemini 4 Carbon shows how fast iteration between researchers and models advances the frontier while safeguards grow alongside it.
Rolling Out Gemini 4 Carbon in Stages
Access to Gemini 4 Carbon is opening in careful phases — this is the order in which it happens.
Benchmark Results Behind Gemini 4 Carbon
A first-place finish on the Intelligence Index and a 0.0% indirect prompt-injection success rate are among the numbers that define Gemini 4 Carbon.
#1 Spot on Intelligence Index v5.0
Gemini 4 Carbon posts 59 at the summit of the refreshed Artificial Analysis Intelligence Index v5.0, gaining ground in coding, agentic work and the capabilities that matter most for security defense.
Fourth Place on WebDev Arena
Cleaner output and artifact quality in full-stack web builds push Gemini 4 Carbon up 89 elo points to #4 with a score of 1768.
Fewer Shortcuts, Less Cheating
Alignment work brought successful cheating on Terminal-Bench 4.0 down to 0.0% and attempts to 0.4% while accuracy rose; high-severity misalignment alerts dropped nearly 80% across internal live coding environments.
More Candor, Fewer Overclaims
Internal testing found Gemini 4 Carbon cutting unsupported claims roughly in half versus Argon — surfacing methodological caveats in the deliverable or holding back blocked actions with a clear list of what is still needed.
Holds the Line on Indirect Prompt Injection
On Gray Swan's Indirect Prompt Injection Benchmark, Gemini 4 Carbon records a 0.0% attack success rate, turning back every attempt evaluated where Argon previously landed at 0.7%.
Completes the Plan, Stays in Scope
Overreach fell 26% and under-service 29%, so multi-step plans now run end to end more reliably while respecting project constraints and staying strictly within scope.
Gemini 4 Carbon: Questions Answered
Straight answers on Gemini 4 Carbon — what it costs, how it scores and who gets in first.
What exactly is Gemini 4 Carbon?
It is our most capable frontier model to date, aimed at state-of-the-art cybersecurity and extended agentic work. Gemini 4 Carbon ranks #1 on the refreshed Artificial Analysis Intelligence Index v5.0 with a score of 59.
How is Gemini 4 Carbon priced?
Introductory pricing is $2 per million input tokens and $10 per million output tokens, and cached input tokens cost 95% less than the input rate. Standard pricing of $4 per 1M input and $20 per 1M output applies once the introductory period ends.
Where does Gemini 4 Carbon post its strongest benchmark scores?
It hits 88.2% on SEC-bench Pro for vulnerability discovery, 54.8% on ExploitGym for exploitation and 71.0% on CWE-bench for patching, along with 4th place and 1768 points on WebDev Arena.
Who has access today?
Access begins with a carefully selected group of security defenders. Over time, more trusted partners are added through the Fairwind Program, and developers, businesses and consumers gain entry through Google's product surfaces.
What changed between Gemini 4 Argon and Gemini 4 Carbon?
On internal benchmarks, Gemini 4 Carbon generates secure code more than 2x as often, produces roughly half as many unsupported claims, blocks every prompt-injection attempt tested and keeps tighter scope discipline.
Which tasks suit Gemini 4 Carbon best?
Hard multi-step engineering — tracing and patching subtle bugs across large codebases and low-level systems — along with agentic workflows, scientific problems, full-stack web development and multimodal understanding.
Get Set for Gemini 4 Carbon
Gemini 4 Carbon aims at major gains in software engineering and defensive security without trading away safety or reliability. Track each phase of the Fairwind Program rollout as developer, business and consumer access approaches.