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.

ChatGPT is a generative artificial intelligence chatbot developed by OpenAI and released in November 2022. It currently uses GPT-5.1, a generative pre-trained transformer (GPT), to generate text, …

Jul 30, 2025 · While you can use all of the free AI tools below at no cost, you may need to create an account to get started. In addition to the online version, many of these tools also have iOS and …

Nov 28, 2025 · OpenAI has confirmed that a security breach has compromised ChatGPT users’ personal data. The incident occurred on 9 November, when attackers gained unauthorised access to …

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 launched in …

5 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 …

GPTs are customized generative pre-trained transformers accessible through OpenAI 's chatbot ChatGPT. They are derived from OpenAI's main GPT models, such as GPT-4o. [1] GPTs can be …

GPT-4o ("o" for "omni") is a multilingual, multimodal generative pre-trained transformer developed by OpenAI and released in May 2024. [2] It can process and generate text, images and audio. [3][4] …