Anthropic: Claude Opus 4.5

Claude Opus 4.5 demonstrates competitive response times, performing among the faster models with a 45th percentile speed ranking. However, it is positioned at premium pricing levels, ranking in the 7th percentile for cost-effectiveness. A standout feature is its exceptional reliability, achieving a perfect 100% success rate across all benchmarks, indicating robust technical stability. The model excels in several critical areas. It achieves perfect accuracy in General Knowledge and Ethics, often being the most accurate model at its price point and speed. Its performance in Coding (95% accuracy), Reasoning (98% accuracy), and Mathematics (96% accuracy) is also highly impressive, placing it in the top echelons for these complex tasks. Instruction Following is strong at 77% accuracy, ranking in the 88th percentile. While its Hallucinations score of 98% accuracy is good, it's not perfect, suggesting a minor area for improvement. Email Classification is solid at 98% accuracy, though it falls in the middle of the pack for this specific task. Overall, Opus 4.5 is a powerful, reliable model particularly suited for demanding analytical and generative tasks.