Claude Opus 4.7, Now Live in Harvey

This post announces the availability of Claude Opus 4.7 in Harvey, highlighting its improved reasoning calibration, stronger performance on ambiguous tasks, and gains in substantive accuracy. It provides specific metrics from the BigLaw Bench evaluation (90.9% score, 45% perfect scores, 88% >= 0.80) and qualitative feedback on its strengths and minor polish gaps compared to Opus 4.6.