People are saying Opus 5.5 might have been nerfed. So I reran the exact same Mario and Mickey Mouse tests with September 30th Opus 5.5 vs. October 3rd Opus 5.5.
Bro borrowed his mom’s iPhone and turned it into a second GPU for his MacBook. Backburner runs Qwen 3.8 27B across a 24GB M4 Pro MacBook and an iPhone 17 Pro M