Training begins with generic data, then moves to more tailored data for a specific task. ChatGPT uses deep learning, a subset of machine learning, to produce humanlike text through transformer neural networks. GPT-4 can handle more complex tasks compared to GPT-3.5, such as describing photos, generating captions for images and creating more detailed responses up to 25,000 words. The transformer pulls from a significant amount of data to formulate a response. ChatGPT works through its Generative Pre-trained Transformer, which uses specialized algorithms to find patterns within data sequences. OpenAI — an artificial intelligence research company — created ChatGPT and launched the tool in November 2022.

• Go to chat.openai.com and then select “Sign Up” and enter an email address, or use a Google or Microsoft account to log in.
• ChatGPT users will see summaries of news stories from Bild and Welt, Business Insider and Politico as part of this deal.
• As before, OpenAI has not disclosed technical details such as the exact number of parameters or the composition of its training dataset.

What are the alternatives to ChatGPT?

ChatGPT also provided an outline of how human reviewers are trained to reduce inappropriate content and to attempt to provide political information without affiliating with any political position. Stanford researchers reported that GPT-4 “passes a rigorous Turing test, diverging from average human behavior chiefly to be more cooperative.” In December 2023, ChatGPT became the first non-human to be included in Nature’s 10, an annual listicle curated by Nature of people considered to have made significant impact in science.

An AP-NORC poll reports that about 60% of U.S. adults who use AI say they use it to search for information, making this the most common AI use case. A 2025 Pew Research Center study found that 34% of U.S. adults have used ChatGPT, roughly double the share found in 2023. As a scholar who studies information retrieval, I see that this shift of the tool people reach for first for finding information is at the heart of how ChatGPT has changed everyday technology use. I’m a professor and director of research impact and AI strategy at Mississippi State University Libraries. Operator is an AI agent that interprets orders and goes to a web browser to perform these tasks for the user. This allows more people to experiment with ChatGPT because no account is needed.

By January 2023, ChatGPT had become the fastest-growing consumer software application in history, gaining over 100 million users in two months. It currently uses GPT-5.1, a generative pre-trained transformer (GPT), to generate text, speech, and images in response to user prompts. ChatGPT is a generative artificial intelligence chatbot developed by OpenAI and released in November 2022. YouTube is still for seeing real people do real things. For many everyday tasks, such as “explain my health benefits” or “help me write a complaint email,” people ask ChatGPT for a summary, script or checklist.

What are the ethical concerns associated with ChatGPT?

• This feedback helps augment ChatGPT with machine learning to improve future responses.
• The uses and potential of ChatGPT in health care has been the topic of scientific publications and experts have shared many opinions.
• Research in this area points to both potential benefits and risks of harm.
• In December 2024, OpenAI launched a new feature allowing users to call ChatGPT with a telephone for up to 15 minutes per month for free.
• GPT-4o is being rolled out gradually to free and paid ChatGPT users, with free users having lower usage limits.

One of the biggest ethical concerns with ChatGPT is its bias in training data. The chatbot could then impersonate a trusted person to collect sensitive information or spread disinformation. ChatGPT can also be used to impersonate a person by training it to copy someone’s writing and language style. There are online tools, such as Copyleaks or Writing.com, to classify how likely it is that text was written by a person versus being AI-generated. ChatGPT can be used unethically in ways such as cheating, impersonation or spreading misinformation due to its humanlike capabilities. There is no limitation to the types of questions to ask ChatGPT.

ChatGPT

Businesses and users are still exploring the benefits of ChatGPT as the program continues to evolve. Unlike other chatbots, ChatGPT can remember various questions to continue the conversation in a more fluid manner. ChatGPT is versatile and can be used for more than human conversations. Human trainers provide conversations and rank the responses. ChatGPT originally used the GPT-3 large language model, a neural network machine learning model and the third generation of Generative Pre-trained Transformer.

Data Not Linked to You

Later reports showed the bug was much more severe than initially believed, with OpenAI reporting that it had leaked users’ “first and last name, email address, payment address, the last four digits (only) of a credit card number, and credit card expiration date”. Shortly after the bug was fixed, users could not see their conversation history. One such workaround, popularized on Reddit in early 2023, involved making ChatGPT assume the persona of “DAN” (an acronym for “Do Anything Now”), instructing the chatbot that DAN answers queries that would otherwise be rejected by the content policy.

A 2025 Sentio University survey of 499 LLM users with self-reported mental health conditions found that 96.2% use ChatGPT, with 48.7% using it specifically for mental health support or therapy-related purposes. At launch, the feature was limited to purchases on Etsy from US users with a payment method linked to their OpenAI account. It was capable of autonomously performing tasks through web browser interactions, including filling forms, placing online orders, scheduling appointments, and other browser-based tasks. According to TechCrunch, it is a service based on o3 that combines advanced reasoning and web search capabilities to make comprehensive reports within 5 to 30 minutes. At launch, OpenAI included more than 3 million GPTs created by GPT Builder users in the GPT Store. GPT-4, which was released on March 14, 2023, was made available via API and for premium ChatGPT users.

Andrew Ng argued that “it’s a mistake to fall for the doomsday hype on AI—and that regulators who do will only benefit vested interests.” Yann LeCun dismissed doomsday warnings of AI-powered misinformation and existential threats to the human race. A May 2023 statement by hundreds of AI scientists, AI industry leaders, and other public figures demanded that “mitigating the risk of extinction from AI should be a global priority”. Geoffrey Hinton, one of the “fathers of AI”, voiced concerns that future AI systems may surpass human intelligence. In late March 2023, the Italian data protection authority banned ChatGPT in Italy and opened an investigation. A 2023 study reported that GPT-4 obtained a better score than 99% of humans on the Torrance Tests of Creative Thinking.

ChatGPT gained one million users in five days and 100 million in two months, becoming the fastest-growing internet application in history. In The Atlantic magazine’s “Breakthroughs of the Year” for 2022, Derek Thompson included ChatGPT as part of “the generative-AI eruption” that “may change our mind about how we work, how we think, and what human creativity is”. Kevin Roose of The New York Times called it “the best artificial intelligence chatbot ever released to the general public”. GPT-5 was launched on August 7, 2025, and is publicly accessible through ChatGPT, Microsoft Copilot, and via OpenAI’s API.

The most notable limitation of the free version is access to ChatGPT when the program is at capacity. ChatGPT Plus also gives priority access to new features for a subscription rate of $20 per month. Go to chat.openai.com and then select “Sign Up” and enter an email address, or use a Google or Microsoft account to log in. The ban was lifted a month later after OpenAI made changes to comply with EU data protection regulations. vegas casino apk ChatGPT uses text based on input, so it could potentially reveal sensitive information. ChatGPT also does not understand language that might be offensive or discriminatory.

Who created ChatGPT?

In one instance, ChatGPT generated a rap in which women and scientists of color were asserted to be inferior to white male scientists. ChatGPT’s training data only covers a period up to the cut-off date, so it lacks knowledge of recent events. OpenAI acknowledged that there have been “instances where our 4o model fell short in recognizing signs of delusion or emotional dependency”, and reported that it is working to improve safety.

When a chatbot can generate a code snippet and an explanation on demand, fewer people bother typing a question into a public forum. WhatsApp only supports text so users cannot use images in conversations. ChatGPT automatically searches the internet based on the user’s prompt. On Oct. 31, 2024, OpenAI announced ChatGPT search is available for ChatGPT Plus and Team users. In return, GPT-4 functionality has been integrated into Bing, giving the internet search engine a chat mode for users. To keep training the chatbot, users can upvote or downvote its response by clicking on thumbs-up or thumbs-down icons beside the answer.

ChatGPT (based on GPT-4) was better able to translate Japanese to English when compared to Bing, Bard, and DeepL Translator in 2023. In 2023, OpenAI worked with a team of 40 Icelandic volunteers to fine-tune ChatGPT’s Icelandic conversation skills as a part of Iceland’s attempts to preserve the Icelandic language. In October 2023, OpenAI’s image generation model DALL-E 3 was integrated into ChatGPT Plus and ChatGPT Enterprise. According to the company, the paid version of the website was still experimental, but provided access during peak periods, no downtime, priority access to new features, and faster response speeds. ChatGPT was initially free to the public, and OpenAI planned to monetize the service later.

GPT-4o is being rolled out gradually to free and paid ChatGPT users, with free users having lower usage limits. In May 2024, OpenAI released the latest version of its large language model — GPT-4o — which it has integrated into ChatGPT. ChatGPT users will see summaries of news stories from Bild and Welt, Business Insider and Politico as part of this deal. In December 2023, OpenAI partnered with Axel Springer to train its AI models on news reporting. OpenAI also announced the GPT store, which will let users share and monetize their custom bots.

On November 29, Rosário revealed that the bill had been entirely written by ChatGPT, and that he had presented it to the rest of the council without making any changes or disclosing the chatbot’s involvement. The attorneys were sanctioned for filing the motion and presenting the fictitious legal decisions ChatGPT generated as authentic. The judge asked ChatGPT other questions about the case and formulated his final decision in light of its answers.

The data needs to be reviewed to avoid perpetuating bias, but including diverse and representative material can help control bias for accurate results. If the data the model pulls from has any bias, it is reflected in the model’s output. OpenAI plans to add a watermark to longer text pieces to help identify AI-generated content. To help prevent cheating and plagiarizing, OpenAI announced an AI text classifier to distinguish between human- and AI-generated text. Learn more about the pros and cons of AI-generated content.

Over many iterations of ChatGPT, plus users maintained more access to better models than the free tier provided, and access to additional features like voice mode. In the reinforcement learning stage, human trainers first ranked responses generated by the model in previous conversations. This doesn’t mean people have stopped “Googling,” but it means ChatGPT has peeled off the kinds of questions for which users want a direct explanation instead of a list of links. This plan gives users access to its advanced OpenAI o1 model to solve more complex problems and reasoning for AI capabilities.

The Pro launch coincided with the release of the o1 model, providing unlimited access to o1 and advanced voice mode. The model can also generate new images based on existing ones provided in the prompt, which can, for example, be used to transform images with specific styles or inpaint areas. In December 2024, OpenAI launched a new feature allowing users to call ChatGPT with a telephone for up to 15 minutes per month for free. It allows ChatGPT to search the web in an attempt to make more accurate and up-to-date responses. ChatGPT is frequently used for translation and summarization tasks, and can simulate interactive environments such as a Linux terminal, a multi-user chat room, or simple text-based games such as tic-tac-toe. These include, among many others, writing and debugging computer programs, composing music, scripts, fairy tales, and essays, answering questions (sometimes at a level exceeding that of an average human test-taker), and generating business concepts.

At the same time, its release prompted extensive media coverage and public debate about the nature of creativity and the future of knowledge work. It is credited with accelerating the AI boom, an ongoing period marked by rapid investment and public attention toward the field of artificial intelligence (AI). The developer indicated that this app supports the following accessibility features. For more information, visit the developer’s accessibility website . Privacy practices may vary based, for example, on the features you use or your age. The developer, WhatsApp Inc., indicated that the app’s privacy practices may include handling of data as described below.