Musk reposted a tweet from Google CEO Sundar Pichai, calling Google's new AI model, Gemini 4 Carbon, "impressive." Pichai had previously announced the launch of Gemini 4 Carbon, which ranked first in the ArtificialAnlys Intelligence Index v5.0 and performed exceptionally well in cybersecurity assessments, including scoring 88.2% in SEC-bench Pro vulnerability finding, 54.8% in ExploitGym vulnerability exploitation, and 71.0% in CWE-bench patch fixing.