According to PANews, OpenAI has introduced three new models in the GPT-4.1 series: GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano. These models are accessible via API and represent a comprehensive upgrade from the previous GPT-4o model. The GPT-4.1 series boasts improved multimodal processing capabilities and a larger context window, capable of handling up to one million tokens. Additionally, the cost of using these models has been reduced by 26%.