ChatGPT: Everything you need to know | Computer Weekly
Briefly

ChatGPT launched publicly in 2022 and rapidly became one of the fastest-growing consumer applications, surpassing 100 million active users within two months. The system uses a Generative Pre-trained Transformer architecture to understand and generate human-like text for tasks including conversation, email drafting, coding and complex research. Access is available via website, mobile app and third-party integrations with free limited use and paid tiers such as GPT Plus and GPT Team for individuals and businesses. OpenAI, founded in 2015 by figures including Sam Altman and Greg Brockman, developed ChatGPT and prompted substantial investment and competition across governments and technology companies.
Since its public debut in 2022, ChatGPT has swiftly reshaped the technological landscape and global economy. As the first widely accessible artificial intelligence (AI) tool to deliver near-human cognitive performance (from holding conversations and drafting emails to coding and conducting complex research), it has captured the attention of the general public and the business world. ChatGPT became the fastest-growing consumer application ever, amassing over 100 million active users in just two months, and its success sparked a global AI arms race, as governments and tech giants poured vast investments into AI infrastructure, vying to engineer the most advanced systems. Today, generative AI (GenAI) may be mainstream, but ChatGPT remains pre-eminent. It ranks among the top five most-visited websites worldwide and consistently outpaces other models in adoption and reach.
ChatGPT, short for Generative Pre-trained Transformer, is a conversational AI chatbot capable of understanding and generating human-like text in response to a user's questions and prompts. The platform can be accessed through its website, mobile app and some third-party integrations. The AI is free to use at its full capability for a limited number of prompts. After this, users will have access to a less powerful version, or can upgrade to GPT Plus for single use, or GPT Team, which is designed for teams and businesses to collaborate using the tool.
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