OpenAI: GPT-4.1

OpenAI's GPT-4.1, created on April 14, 2025, is a flagship large language model designed for advanced instruction following, real-world software engineering, and long-context reasoning, supporting a 1 million token context window. It performs among the fastest models, typically ranking in the top tier for speed (75th percentile across 7 benchmarks). The model offers moderate pricing, positioned at the 26th percentile across 7 benchmarks. Notably, GPT-4.1 demonstrates exceptional reliability with a perfect 100% success rate across all evaluated benchmarks, indicating minimal technical failures. GPT-4.1 exhibits strong performance across various categories. It achieves perfect accuracy in Ethics (100.0%), making it the most accurate model at its price point and among models of similar speed. It also excels in General Knowledge (99.5% accuracy) and Coding (91.0% accuracy), outperforming GPT-4o and GPT-4.5 in the latter with 54.6% SWE-bench Verified. Instruction Following (76.0% accuracy) and Reasoning (82.0% accuracy) are also significant strengths. While its Hallucinations Baseline accuracy is 88.0%, this places it in the 33rd percentile, suggesting room for improvement in acknowledging uncertainty. Its high recall in large document contexts and precise code diffs make it ideal for agents, IDE tooling, and enterprise knowledge retrieval.