Claude Opus 5.5 First AI Agent to Beat Hyperparameter Search, 12x Speedup

InferenceBench reports Claude Opus 5.5 is the first AI agent to outperform hyperparameter search, achieving a 12.08x speedup. The team also launched a trace viewer showing the full reasoning trajectories.

2026-09-25 ~ 2026-09-26 · 3 related posts

• InferenceBench: Claude Opus 5.5 posts 12.08x speedup, first agent to beat hyperparameter search — maksym_andr · 2026-09-25
• Opus 5.5 Hits 12.08x Speedup on InferenceBench, Trace Viewer Shows How — maksym_andr · 2026-09-26

1 near-duplicate retellings: maksym_andr