OpenAI Launches GPT-4.1 Models with Enhanced Features

OpenAI has launched a new family of language models, GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano, which offer larger context windows—up to 1 million tokens—and improved performance in coding, instruction following, and contextual awareness compared to previous models. These models provide a range of options balancing speed, cost, and capability, with GPT-4.1 nano being the fastest and cheapest. Key enhancements include better syntax understanding, more accurate debugging, and improved code optimization, making them valuable tools for developers. GPT-4.1 also features a more literal approach to following instructions, requiring users to be explicit but offering greater control over outputs. According to OpenAI's internal evaluations, GPT-4.1 demonstrates substantial improvements in instruction following over earlier versions. The release comes as competitors like Google and Anthropic debut rival models with similar capabilities.