OpenAI's GPT-4 is the latest cutting-edge multimodal large language model, building upon the foundation of previous GPT models. Released on March 14, 2023, through the paid ChatGPT Plus chatbot product and OpenAI's API, the model is based on transformer architecture and uses a pre-training paradigm incorporating public and licensed third-party provider data to predict the next token. Additionally, GPT-4 has been fine-tuned with reinforcement learning feedback from humans and AI to ensure compliance with policies and alignment with human standards.

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