Google Gemini 4 "Carbon" Model reportedly matches Anthropic Opus 5.5 in coding performance
According to Business Insider, Google is internally testing three variants of Gemini 4—Argon, Barium, and Carbon. The Carbon variant has been deployed on the internal coding platform Jetski, outperforming Argon in coding tasks, with some employees comparing it to Anthropic's top coding model, Opus 5.5, though more testing is needed.
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