GSO Leaderboard Update: Opus 4.8 Takes the Crown

scaling01 · x · 2026-07-13

The post announces that the GSO results are out, detailing the latest ranking shifts: Opus 4.8 has reached a new SOTA, GPT-5.5-xhigh ranks 4th, and Sonnet 5 ranks 5th.

While the original post lacks specific evaluation details, the core message is clear: this is a leaderboard update that will influence model reputation and comparative discussions, directly impacting the relative standing of multiple frontier models.

Related event: Opus 4.8 Reaches New SOTA in Latest GSO Rankings(2 posts)→

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