Gemini Pro user's screenshot shows a locked '4 Carbon' model tier in the UI

SR_RSMITH · reddit · 2026-11-11

A Gemini Pro user shared a screenshot of the Google AI UI showing a new locked entry, "Most complex work: 4 Carbon," alongside tiers like 3.5 Flash-Lite, 3.8 Flash, 3.1 Pro, and 4 Argon. This suggests Google may be preparing a new model tier named Carbon—treat as an unconfirmed leak.

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