OpenAI: GPT-4.1 Nano

OpenAI's GPT-4.1 Nano, released on April 14, 2025, is positioned as a high-speed, cost-effective model within the GPT-4.1 series, featuring a 1 million token context window. It consistently ranks among the fastest models, achieving the 83rd percentile across eight benchmarks, and offers highly competitive pricing, ranking in the 80th percentile. Notably, its reliability is exceptional, demonstrating a 100% success rate across all evaluated benchmarks, indicating minimal technical failures. The model exhibits strong performance in specific areas. It achieved perfect accuracy in the Ethics (Baseline) benchmark, making it the most accurate model at its price point and among models of similar speed. Its hallucination rate is low at 96.0% accuracy, and it performs well in Mathematics (92.5%). However, its performance in General Knowledge (96.5% accuracy, 42nd percentile) and Email Classification (92.0% accuracy, 18th percentile) is less competitive compared to other models. Instruction Following (55.5%) and Reasoning (56.0%) also present areas for improvement. Despite these variations, its overall speed, cost-efficiency, and perfect reliability make it ideal for latency-sensitive tasks like classification and autocompletion.