On March 27, OpenAI made a major update to ChatGPT, launching a new version of the GPT-4o model (version number GPT-4o-03-26) and a new memory function codenamed "Moonshine Nux V2". The new GPT-4o has achieved significant performance improvements, especially in handling complex tasks, technical capabilities and creative output. The LMSYS arena rankings show that GPT-4o jumped from 5th place in January to 2nd place, surpassing GPT-4.5, and the cost of use is only one-tenth of the latter.
At the same time, the new memory function "Moonshine Nux V2" allows ChatGPT to remember more user conversations and maintain memory coherence across different chat windows. This feature significantly improves the user experience, allowing ChatGPT to complete tasks more intelligently based on historical context without the need for repeated background information from users. This upgrade not only consolidates OpenAI's technological leadership, but also lays the foundation for future personalized AI services.