gpt4

Generative Pre-trained Transformer 4 (GPT-4) is a multimodal large language model created by OpenAI, and the fourth in its numbered "GPT-n" series of GPT foundation models. It was released on March 14, 2023, and has been made publicly available in a limited form via the chatbot product ChatGPT Plus (a ρrémíùm version of ChatGPT), and with access to the GPT-4 based version of OpenAI's API being provided via a waitlist. As a transformer based model, GPT-4 was pretrained to predict the next token (using both public data and "data licensed from third-party providers"), and was then fine-tuned with reinforcement learning from human and AI feedback for human alignment and policy compliance.: 2 Observers reported the GPT-4 based version of ChatGPT to be an improvement on the previous (GPT-3.5 based) ChatGPT, with the caveat that GPT-4 retains some of the same problems. Unlike the predecessors, GPT-4 can take images as well as text as input. OpenAI has declined to reveal technical information such as the size of the GPT-4 model.

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