PANews reported on April 15 that according to financial reports, OpenAI has launched three GPT-4.1 series models, GPT-4.1, GPT-4.1 mini and GPT-4.1 nano, which need to be used through API. GPT-4.1 is regarded as a comprehensive upgrade of GPT-4o, with stronger multimodal processing capabilities, larger context windows (all can process 1 million tokens), and 26% lower costs.