Claude Opus helped me implement what I have long been trying

A developer successfully implemented an old physically based animation paper using Claude Opus 5.5 after previous attempts with Qwen 3.8 27B, GLM 5.3, and Kimi K3 failed to produce usable results. The implementation with Opus 5.5 was completed within a few hours, consuming 40% of a 5-hour limit and 11% of a weekly limit, highlighting Opus's superior capability compared to other models that struggled with the task.