一句话总结
Gemini 4 Carbon is Google's flagship model released on October 28, 2026, described by the company as its strongest yet; it tops the Artificial Analysis Intelligence Index v5.0 at 59, launches at $2/$10 per million tokens (input/output), and is first available to vetted cyber defenders through the Fairwind program.
About the Model
Q: What is Gemini 4 Carbon?
Google released Gemini 4 Carbon on October 28, 2026, positioning it as the company's strongest model, focused on long-horizon agentic tasks and cybersecurity. It scores 59 on the Artificial Analysis Intelligence Index v5.0, the global high on release day.
Q: How does Carbon differ from Gemini 4 Argon?
Argon, released in April 2026, is Google's general-purpose flagship with an index score of 50; Carbon is the stronger new flagship at 59. API pricing also differs: Argon costs $2/$12 per million tokens (input/output), while Carbon launches at $2/$10 and settles at a regular $4/$20.
Performance and Use Cases
Q: On which benchmarks does Carbon lead?
Per MarkTechPost's summary: 96.2% on GraphWalks (256k to 1M long context), 65.2% on Terminal-Bench 4.0, 88.2% on SEC-bench Pro, 54.8% on ExploitGym and 71.0% on CWE-bench, leading rivals on all three cybersecurity benchmarks.
Q: What is Carbon designed for?
Google says it targets long-horizon agentic tasks (multi-step work lasting hours) and cybersecurity (vulnerability discovery, remediation and defensive automation), rather than simple Q&A dialogue.
Access and Pricing
Q: Who gets Carbon first?
Google says the first batch goes to vetted cyber defenders through the Fairwind program; the pace of commercial and developer access depends on Google's official announcements.
Q: How is Carbon priced?
Per million tokens: $2 input/$10 output at launch (limited time), then a regular $4/$20. That matches Claude Opus 5.5's regular price ($4/$20) and is below GPT-6 Astra ($10/$50).