On October 7, OpenAI's CEO, Altman, made an announcement stating that OpenAI has officially launched the GPT-5 Pro model on its API platform. Alongside this, a smaller-scale speech model named GPT-realtime-mini was also released. Altman underscored the significance of speech, highlighting that it is poised to become one of the predominant means of interaction between humans and AI. This strategic initiative underscores OpenAI's commitment to forging a multimodal human-AI interaction experience. Moreover, the introduction of these lightweight speech models is anticipated to empower developers to seamlessly integrate speech functionalities with greater efficiency.