Claude Code is already widely used by developers, and with a new brain, it may fend off Google’s new Antigravity tool. Anthropic launched its newest model, Claude Opus 4.5, putting the company back atop the benchmark rankings for AI software coding. Opus 4.5 scores over 80% on the widely-used SWE-bench, which tests models for software engineering skill. Google’s impressive Gemini 3 Pro, launched last week, briefly held the top score with 76.2%. Anthropic’s Claude product lead Scott White tells Fast Company that the model has also scored higher than any human on the engineering take-home assignment the company gives to engineering job candidates.