DeepSeek is developing an artificial intelligence model with more advanced AI agent features to compete with US rivals like OpenAI in a newer frontier of the technology, according to people familiar with the matter.The Hangzhou-based startup is building an AI model that’s designed to carry out multi-step actions on a person’s behalf with minimal direction from the user, said the people. The system is also meant to learn and improve based on its prior actions, the people said, speaking on conditi...