Google reportedly testing Gemini 4 checkpoint 'Carbon' that matches Opus 5.5 in coding

BLUECOW009 · x · 2026-10-10

Per Business Insider, Google is internally testing a new Gemini 4 checkpoint codenamed "Carbon" that reportedly matches Anthropic's Opus 5.5 in coding. Unconfirmed officially; treat as a credible rumor pending third-party benchmarks.

Related event: Google reportedly set to launch Gemini 4 'Argon' while testing 'Carbon' internally(7 posts)→

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