OpenAI: GPT-5.4 Mini

OpenAI's GPT-5.4 Mini, released on March 17, 2026, is positioned as a highly efficient and capable model for high-throughput production environments. It consistently performs among the fastest models, ranking in the 93rd percentile across 8 benchmarks, and offers competitive pricing, placing in the 45th percentile. Notably, its reliability is exceptional, demonstrating a 100% success rate across all benchmarks, indicating minimal technical failures. The model exhibits strong performance across diverse tasks. It achieves perfect accuracy in the Ethics benchmark, standing out as the most accurate model at its price point and among models of comparable speed. Instruction Following is robust at 76.0% accuracy (83rd percentile), and General Knowledge is impressive at 99.0% (63rd percentile). Coding and Mathematics benchmarks also show strong accuracy (87.0% and 83.0% respectively), with GPT-5.4 Mini being the most accurate among models of similar speed in both categories. While its Hallucinations accuracy is 96.0%, indicating a good ability to acknowledge uncertainty, its Reasoning accuracy at 74.0% (52nd percentile) suggests room for improvement compared to its other strengths. Overall, GPT-5.4 Mini's key strengths lie in its speed, reliability, and strong performance in instruction following, ethics, and coding, making it well-suited for scalable applications.