GPT-4.5 is the latest language model released by OpenAI, representing the forefront of current unsupervised learning technology. Trained on massive computation and data, the model has enhanced its understanding of world knowledge and pattern recognition capabilities, reduced hallucination, and enables more natural human interaction. It excels in writing, programming, and problem-solving tasks, particularly suitable for scenarios requiring high creativity and emotional understanding. GPT-4.5 is currently in research preview and is open to Pro users and developers to explore its potential.