AAnup Karanjkar·May 2GPT-5.4 vs Gemini 3.1 Pro vs Claude Opus 4.6: April 2026 BenchmarksGPT-5.4 broke the human baseline on OSWorld. Gemini 3.1 Pro leads reasoning. Claude Opus 4.6 tops coding. Here’s the definitive April 2026 benchmark breakdown.9 min read·wowhow.hashnode.dev1B