Gemini 4 Carbon
An internal Google checkpoint within the Gemini 4 model series, codenamed Carbon. It is described as a newer version than the Argon checkpoint, with reported coding capabilities comparable to those of Claude Opus 5.5.
Timeline (last 90 days)
Google may be internally testing a Gemini 4 series model codenamed "Carbon," but this information comes from an unverified leak report.
Carbon is an internal checkpoint, not a finished product intended for the public.
Google is internally testing a new Gemini 4 checkpoint codenamed Carbon, whose coding capabilities are being benchmarked against Claude Opus 5.5.
As of the time of reporting, no independent benchmark has confirmed Carbon's performance against Opus 5.5.
All Facts (4)
Google may be internally testing a Gemini 4 series model codenamed "Carbon," but this information comes from an unverified leak report.
50%UnverifiedCarbon is an internal checkpoint, not a finished product intended for the public.
50%UnverifiedGoogle is internally testing a new Gemini 4 checkpoint codenamed Carbon, whose coding capabilities are being benchmarked against Claude Opus 5.5.
50%UnverifiedAs of the time of reporting, no independent benchmark has confirmed Carbon's performance against Opus 5.5.
50%