GPT-5 is OpenAI's most advanced large language model, offering significant improvements in reasoning, accuracy, and efficiency over previous versions. It supports multimodal input, allowing users to interact using text, images, audio, and video in a single session. With a context window of up to 256,000 tokens and advanced multilingual capabilities, GPT-5 excels at complex problem-solving, content creation, and real-world enterprise workflows. Enhanced safety features and reduced hallucinations make it suitable for a wide range of professional and creative applications.