As of late 2024, OpenAI’s latest flagship model is **GPT-4o** (the "o" stands for "omni").

Released in May 2024, it is designed to be natively multimodal, meaning it can process and generate text, audio, and images in real-time with much lower latency than previous models.

Additionally, OpenAI recently released a new series of "reasoning" models:

*   **OpenAI o1-preview:** This is a new class of model focused on complex reasoning, science, and coding. While GPT-4o is the "flagship" for general-purpose use and speed, **o1** is currently their most powerful model for advanced problem-solving.
*   **OpenAI o1-mini:** A faster, more cost-efficient version of the o1 reasoning model.

**In summary:** 
*   **GPT-4o** is the primary flagship for daily tasks, vision, and voice.
*   **o1-preview** is the latest high-intelligence model for complex reasoning.
