Benchmark Performance - Grok 4.5 claimed the top spot on the HighWalk Benchmark, delivering the best quality and efficiency combination [1] - The independent test evaluated AI model performance across **46** Laravel commits focusing on code analysis, abstraction, and precise writing [1] - Higher reasoning effort did not consistently improve model performance in the benchmark [1] Model Competitiveness - Claude Opus 5 achieved the highest raw quality with zero hard failures under high reasoning effort settings [2] - GLM 5.2 emerged as the strongest open-weight model in the evaluation [2]

BREAKING: Grok 4.5 just claimed the top spot on the new HighWalk Benchmark.The independent test measures how well AI models update real technical specifications from 46 Laravel commits — heavy on code analysis, abstraction, and precise writing.Results: • Grok 4.5 (high) → overall #1 (best quality + efficiency combo)• Claude Opus 5 (high) → highest raw quality, zero hard failures• GLM 5.2 → strongest open-weight modelHigher reasoning effort didn’t always help. Full results just dropped.Elon Musk (@elonmusk): ...