Claude Sonnet 4.5 is better in Antigravity than in Claude Code itself

Interesting: Sonnet 4.5 is doing so well in Antigravity that it overshadowed Gemini 3. It seems that, somehow, Anthropic has improved on Sonnet 4.5, at least in these early days. I made a comparison using the same projects and, in Antigravity, Sonnet 4.5 did much better, understanding more clearly what was required.