OpenAI GPT

OpenAI's Generative Pre-trained Transformer (GPT) is the flagship series of multimodal AI models, defining the state-of-the-art for agentic task performance and professional knowledge work.

The Generative Pre-trained Transformer (GPT) is OpenAI's foundational model series: a family of large multimodal models (LMMs) that includes the current frontier model, GPT-5.2, and the efficient GPT-4o. These models are not just chatbots; they are engineered for complex, real-world tasks, demonstrating superior performance in areas like code generation, long-context understanding (e.g., GPT-4 Turbo's 128,000-token window), and advanced agentic tool-calling. GPT systems power applications like ChatGPT, delivering human-like, structured responses for everything from creative writing to high-value professional tasks (building spreadsheets, drafting presentations, and executing multi-step projects).

https://openai.com/