OpenAI: GPT-4.1 Nano

OpenAI's GPT-4.1 Nano, released on April 14, 2025, is engineered for low-latency applications, offering a 1 million token context window. It consistently ranks among the fastest models, performing in the 83rd percentile across benchmarks, and offers competitive pricing, typically falling within the 79th percentile. The model demonstrates exceptional reliability with a 100% success rate across all evaluated benchmarks, indicating robust operational stability. In terms of performance, GPT-4.1 Nano excels in specific areas. It achieved perfect accuracy in the Ethics benchmark, notably being the most accurate model at its price point and among models of comparable speed. It also showed strong performance in Mathematics (92.5% accuracy, 73rd percentile) and Coding (84.0% accuracy, 58th percentile), where it was also the most accurate among models of similar speed. Its ability to acknowledge uncertainty is strong, with 96.0% accuracy in the Hallucinations test. However, the model shows moderate performance in General Knowledge (96.5% accuracy, 47th percentile), Instruction Following (55.5% accuracy, 57th percentile), and Reasoning (56.0% accuracy, 40th percentile). A notable weakness is its Email Classification accuracy, which stands at 92.0% (20th percentile), suggesting room for improvement in this specific classification task. Overall, GPT-4.1 Nano is a cost-effective and reliable choice for tasks demanding speed and specific strengths in ethics, mathematics, and coding, particularly for classification and autocompletion.