GPT‑5 Mini is a lightweight multimodal AI model launched by OpenAI. It features high speed and low cost, supports text and image understanding, and is suitable for high‑concurrency, lightweight reasoning and daily interaction scenarios. 参考 12 篇资料 GPT-5 Mini的参数规模是多少？ GPT-5 Mini和GPT-4o mini有什么区别？ 介绍一下GPT-5 Mini的训练数据