Claude Opus 5.5 (High) tops Arena Text Arena leaderboard at 1509

Claude Opus 5.5 （High） 以 1509 分登顶 Arena Text Arena 榜首

Anthropic's Claude Opus 5.5 (High) hit #1 on Arena Text Arena at 1509, 18 points ahead of Opus 5 (High). Opus 4.6 (High) sits at #2, four points behind; Anthropic takes the top six spots. The model's blended price is ~$16 per million tokens, landing it on the Pareto frontier. The post doesn't spell out evaluation dimensions or comparison model details.

Why it matters: Claude Opus 5.5 hitting #1 on Arena's text leaderboard with an Anthropic sweep of the top six is a notable capability signal. The 1509 score, 18-point gap over Opus 5, and ~$16/M token pricing give enough substance. Not scoring higher because Arena rankings are volatile, and t...