Correction: Claude Opus 4's approximately threefold speed increase is dated to May 2025

According to the statement, Claude Opus 4's approximately 3× average speed increase is dated to May 2025, not May 2024. The evaluation has existed since September 2024, but backtesting on earlier models found that there was no speed increase in the May 2024 versions, which alters claims about the pace of performance improvement.