Anthropic: Claude Opus 4.1

Anthropic's Claude Opus 4.1, created August 5, 2025, is an advanced model excelling in coding, reasoning, and agentic tasks, with a substantial 200,000 context length. It demonstrates moderate speed performance, ranking in the 35th percentile, and is positioned at premium pricing levels, in the 3rd percentile. A standout feature is its exceptional reliability, achieving a 100% success rate across all benchmarks, indicating minimal technical failures. The model exhibits perfect accuracy in Hallucinations, General Knowledge, and Ethics benchmarks, often being the most accurate at its price point and speed. It shows strong performance in Coding (94.0% accuracy, 91st percentile) and Reasoning (92.0% accuracy, 82nd percentile), aligning with its description of improved performance in these areas. Mathematics also shows robust results at 92.9% accuracy. While Instruction Following is solid at 69.0% (79th percentile), Email Classification is moderate at 98.0% (53rd percentile). Its key strengths lie in its high accuracy across critical knowledge and reasoning domains, coupled with its perfect reliability. The primary area for consideration is its premium pricing.