According to an OpenAI blog post, ChatGPT will build memories on its own over time, though users can also prompt the bot to remember specific details — or forget them. The February 2024 memory update allows ChatGPT to remember details from previous conversations and tailor its future responses accordingly. To kick off the start of its o1 model family, OpenAI also announces the limited release of its o1-preview and o1-mini models. The feature is also still exclusive to ChatGPT users who have a Plus, Team, Enterprise or Education plan. While users cannot checkout inside ChatGPT, they are redirected to the merchant’s website when they click on the link.
- OpenAI announces the ChatGPT Pro plan, a new premium plan for ChatGPT users to access even more features.
- Initially released as a pilot, group chats will be steadily released globally to all logged-in ChatGPT Free, Go, Plus and Pro users.
- To prevent offensive outputs from being presented to and produced by ChatGPT, queries are filtered through the OpenAI “Moderation endpoint” API (a separate GPT-based AI).
- It’s capable of carrying on conversations with human users and generating a wide range of text outputs including recipes, computer code, essays and personal letters.
OpenAI o1 Model Family Announcement (September
These rankings were used to create “reward models” that were used to fine-tune the model further by using several iterations of proximal policy optimization. As of 2025, ChatGPT’s website is among the 5 most-visited websites globally, and has over 800 million active weekly users. 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. OpenAI has already gotten a glimpse of this future through its o1 model, and the results have been mixed. AI agents represent stage three of AGI, enhancing ChatGPT’s reasoning abilities and enabling it to complete a broader range of tasks without human assistance.
In July 2023, the FTC launched an investigation into OpenAI, the creator of ChatGPT, over allegations that the company scraped public data and published false and defamatory information. In late March 2023, the Italian data protection authority banned ChatGPT in Italy and opened an investigation. Stanford researchers reported that GPT-4 “passes a rigorous Turing test, diverging from average human behavior chiefly to be more cooperative.” A 2023 study reported that GPT-4 obtained a better score than 99% of humans on the Torrance Tests of Creative Thinking. In December 2022, Google executives sounded a “code red” alarm, fearing that ChatGPT’s question-answering ability posed a threat to Google Search, Google’s core business.
GPT-4, which was released on March 14, 2023, was made available via API and for premium ChatGPT users. 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. ChatGPT is a chatbot and AI assistant built on large language model (LLM) technology. ChatGPT’s training data includes software manual pages, information about internet phenomena such as bulletin board systems, multiple programming languages, and the text of Wikipedia.
GPT-5 vs. GPT 4o
At $200 per month, the plan is intended to give users access to OpenAI’s latest offering, the o1 model family. The language models used in ChatGPT are specifically optimized for dialogue and were trained using reinforcement learning from human feedback (RLHF). By using a large language model (LLM), which is trained on vast amounts of data from the internet, ChatGPT can answer questions, compose essays, offer advice and write code in a fluent and natural way. In January 2023, pin-up casino india the International Conference on Machine Learning banned any undocumented use of ChatGPT or other large language models to generate any text in submitted papers. The FTC asked OpenAI for comprehensive information about its technology and privacy safeguards, as well as any steps taken to prevent the recurrence of situations in which its chatbot generated false and derogatory content about people.
Who Created ChatGPT?
It can generate plausible-sounding but incorrect or nonsensical answers known as hallucinations. Despite its acclaim, the chatbot has been criticized for its limitations and potential for unethical use. 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).
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. At launch, OpenAI included more than 3 million GPTs created by GPT Builder users in the GPT Store. The Pro launch coincided with the release of the o1 model, providing unlimited access to o1 and advanced voice mode. In September 2025, OpenAI added a feature called Pulse, which generates a daily analysis of a user’s chats and connected apps such as Gmail and Google Calendar.
GPT-4o (“o” for “omni”) is a multilingual, multimodal generative pre-trained transformer developed by OpenAI and released in May 2024. A study presented example attacks on ChatGPT, including jailbreaks and reverse psychology. ChatGPT is programmed to reject prompts that may violate its content policy. The term “hallucination” as applied to LLMs is distinct from its meaning in psychology, and the phenomenon in chatbots is more similar to confabulation or bullshitting. In one instance, ChatGPT generated a rap in which women and scientists of color were asserted to be inferior to white male scientists.
- This can include factual information — like dietary restrictions or relevant details about the user’s business — as well as stylistic preferences like brevity or a specific kind of outline.
- ChatGPT was able in 2023 to provide useful code for solving numerical algorithms in limited cases.
- It currently uses GPT-5.1, a generative pre-trained transformer (GPT), to generate text, speech, and images in response to user prompts.
- In December 2023, the Albanian government decided to use ChatGPT for the rapid translation of European Union documents and the analysis of required changes needed for Albania’s accession to the EU.
- Not only can ChatGPT generate working computer code of its own (in many different languages), but it can also translate code from one language to another, and debug existing code.
Notable ChatGPT Updates
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. 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. ChatGPT gained one million users in five days and 100 million in two months, becoming the fastest-growing internet application in history. Samantha Lock of The Guardian noted that it was able to generate “impressively detailed” and “human-like” text. As before, OpenAI has not disclosed technical details such as the exact number of parameters or the composition of its training dataset. 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”.
ChatGPT Agent Launch (July
Robin Bauwens, an assistant professor at Tilburg University, found that a ChatGPT-generated peer review report on his article mentioned nonexistent studies. In January 2023, Science “completely banned” LLM-generated text in all its journals; however, this policy was just to give the community time to decide what acceptable use looks like. ChatGPT has been used to generate introductory sections and abstracts for scientific articles. 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. Juergen Schmidhuber said that in 95% of cases, AI research is about making “human lives longer and healthier and easier.” He added that while AI can be used by bad actors, it “can also be used against the bad actors”.
Create Content
This paid subscription version of ChatGPT provides faster response times, access during peak times and the ability to test out new features early. According to OpenAI, builders based in the United States will be eligible for payments based on the usage of their custom GPTs. A marketing team, for example, might coach the model on its brand voice guidelines and upload campaign analytics so members of the team can use ChatGPT to spot trends. This can include factual information — like dietary restrictions or relevant details about the user’s business — as well as stylistic preferences like brevity or a specific kind of outline. OpenAI announces the release of its o1 model, which demonstrates complex reasoning capabilities.
This is used to not only help the model determine the best output, but it also helps improve the training process, enabling it to answer questions more effectively. It can also critique the user’s writing, summarize long documents and translate text from one language to another. ChatGPT is a chatbot created by OpenAI that can process text, image, audio and video data to answer questions, solve problems and more.
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. Despite this, users may “jailbreak” ChatGPT with prompt engineering techniques to bypass these restrictions.
To prevent offensive outputs from being presented to and produced by ChatGPT, queries are filtered through the OpenAI “Moderation endpoint” API (a separate GPT-based AI). They can explicitly tell ChatGPT to remember aspects of the conversation, and ChatGPT can use these details in future conversations. Users interact with ChatGPT through conversations which consist of text, audio, and image inputs and outputs. 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.
Italian regulators assert that ChatGPT was exposing minors to age-inappropriate content, and that OpenAI’s use of ChatGPT conversations as training data could violate Europe’s General Data Protection Regulation. In September 2025, following the suicide of a 16-year-old, OpenAI said it planned to add restrictions for users under 18, including the blocking of graphic sexual content and the prevention of flirtatious talk. OpenAI CEO Sam Altman said that users were unable to see the contents of the conversations. The model has been trained through a combination of automated learning and human feedback to generate text that closely matches what you’d expect to see in text written by a human. According to research conducted by OpenAI and AI safety organization Apollo Research, o1 provides more intelligent answers than GPT-4o while also attempting to deceive users more than any major AI model available.
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”. Like GPT-5, it comes with a “Thinking” mode for complex problem-solving and an “Instant” mode for fast responses. GPT-5 was launched on August 7, 2025, and is publicly accessible through ChatGPT, Microsoft Copilot, and via OpenAI’s API.