Rumor: Gemini 4 Carbon in testing, beats Argon on 3D and spatial reasoning
Google is reportedly testing a new Gemini 4 model called Carbon, with early testers citing gains in 3D generation, spatial reasoning and output quality over Argon, plus coding compared to Claude Opus 5.5.

Gemini 4 Carbon could be coming soon! Google is reportedly testing Carbon, a new Gemini 4 model, with early testers reporting improvements in 3D generation, spatial reasoning, and overall output quality compared to Argon. Its coding capabilities are also being compared to Claude Opus 5.5, making it interesting to see how it performs on complex coding tasks. Google hasn't announced an official release date yet. Looking forward to seeing more test results and how Carbon compares with other leading AI models.