Now Opus 5.5 is 58 on Artificial Analysis, how long do you have wait until an open model hits 58?

Opus 5.5 has achieved a score of 58 on Artificial Analysis, significantly outperforming the best open model, mimo 2.6 pro, which scored 46. This marks a substantial improvement from fable 5.1. The discussion suggests that open models might reach a score of 58 within 4-5 months, driven by increased GPU deployment, scaled parameters, data, compute, and architectural improvements, despite the current 12-point gap.

This report uniquely quantifies the performance gap between Opus 5.5 and open models, unlike other discussions that only note the score difference.