Apr 3, 2024 · On April 1, OpenAI, ChatGPT’s parent company, opened access to their signature AI chat tool. There’s no need to register for a login and password, and it’s totally free of charge.

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Training workflow of original ChatGPT/InstructGPT release [11][12] ChatGPT is based on GPT foundation models that have been fine-tuned for conversational assistance. The fine-tuning …

Original GPT model A generative pre-trained transformer (GPT) is a type of large language model (LLM) [1][2][3] that is widely used in generative AI chatbots. [4][5] GPTs are based on a deep …

6 days ago · The most recent version, GPT-5 replaced older versions — to the disappointment of some who missed the "personality" of GPT-4o. In response, Altman said users subscribed to …

ChatGPT Atlas features a ChatGPT sidebar within the browser that allows users to ask questions about the current webpage, summarize information, compare products, and analyze data from …

Oct 22, 2025 · OpenAI's new artificial-intelligence-powered web browser, ChatGPT Atlas, is now available for download.

Generative pre-trained transformer (GPT) models are large language models trained to generate text. ChatGPT is a virtual assistant developed by OpenAI and based on GPT models. It …