GPT-4o Mini is a lightweight, cost-efficient version of OpenAI's GPT-4o model, offering multimodal capabilities including text and vision at significantly lower latency and price. It scores 82% on MMLU and outperforms GPT-3.5 Turbo on most benchmarks while being cheaper per token. Ideal for developers building high-volume applications that need strong reasoning without the cost of full GPT-4o.