【#Tech24H】On Tuesday, OpenAI unveiled its two most capable small models to date, GPT-5.4 mini and GPT-5.4 nano, significantly narrowing the performance gap with flagship models while offering lower latency and reduced costs. The GPT-5.4 mini comprehensively surpasses the previous generation GPT-5 mini in core dimensions such as coding, reasoning, multimodal understanding, and tool use, with an operating speed increased by more than twice. The GPT-5.4 nano, positioned as the lowest-cost and lowest-latency lightweight option, is available to developers exclusively via API and is specifically designed for tasks like data classification, information extraction, and simple programming subtasks.